3697713821 has 8 divisors (see below), whose sum is σ = 3842277888. Its totient is φ = 3554730000.

The previous prime is 3697713797. The next prime is 3697713829. The reversal of 3697713821 is 1283177963.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3697713821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3697713829) 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 7 ways as a sum of consecutive naturals, for example, 390290 + ... + 399651.

It is an arithmetic number, because the mean of its divisors is an integer number (480284736).

Almost surely, 2^3697713821 is an apocalyptic number.

3697713821 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3697713821 is a deficient number, since it is larger than the sum of its proper divisors (144564067).

3697713821 is a wasteful number, since it uses less digits than its factorization.

3697713821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790123.

The product of its digits is 381024, while the sum is 47.

The square root of 3697713821 is about 60808.8301235931. The cubic root of 3697713821 is about 1546.3617506441.

The spelling of 3697713821 in words is "three billion, six hundred ninety-seven million, seven hundred thirteen thousand, eight hundred twenty-one".