3737668997 has 4 divisors (see below), whose sum is σ = 3838687116. Its totient is φ = 3636650880.

The previous prime is 3737668993. The next prime is 3737669017. The reversal of 3737668997 is 7998667373.

3737668997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3479938081 + 257730916 = 58991^2 + 16054^2 .

It is a cyclic number.

It is not a de Polignac number, because 3737668997 - 2² = 3737668993 is a prime.

It is a super-2 number, since 2×3737668997² = 27940339062269972018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3737668993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50509004 + ... + 50509077.

It is an arithmetic number, because the mean of its divisors is an integer number (959671779).

Almost surely, 2^3737668997 is an apocalyptic number.

3737668997 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3737668997 is a deficient number, since it is larger than the sum of its proper divisors (101018119).

3737668997 is a wasteful number, since it uses less digits than its factorization.

3737668997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101018118.

The product of its digits is 72013536, while the sum is 65.

The square root of 3737668997 is about 61136.4784478138. The cubic root of 3737668997 is about 1551.9114811005.

It can be divided in two parts, 37 and 37668997, that multiplied together give a square (1393752889 = 37333²).

The spelling of 3737668997 in words is "three billion, seven hundred thirty-seven million, six hundred sixty-eight thousand, nine hundred ninety-seven".