3697309397 has 4 divisors (see below), whose sum is σ = 3797236716. Its totient is φ = 3597382080.

The previous prime is 3697309373. The next prime is 3697309403. The reversal of 3697309397 is 7939037963.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7939037963 = 37537 ⋅211499.

It can be written as a sum of positive squares in 2 ways, for example, as 3390849361 + 306460036 = 58231^2 + 17506^2 .

It is a cyclic number.

It is not a de Polignac number, because 3697309397 - 2¹⁴ = 3697293013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3697309697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49963604 + ... + 49963677.

It is an arithmetic number, because the mean of its divisors is an integer number (949309179).

Almost surely, 2^3697309397 is an apocalyptic number.

3697309397 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3697309397 is a deficient number, since it is larger than the sum of its proper divisors (99927319).

3697309397 is an equidigital number, since it uses as much as digits as its factorization.

3697309397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99927318.

The product of its (nonzero) digits is 5786802, while the sum is 56.

The square root of 3697309397 is about 60805.5046603513. The cubic root of 3697309397 is about 1546.3053726913.

The spelling of 3697309397 in words is "three billion, six hundred ninety-seven million, three hundred nine thousand, three hundred ninety-seven".