3997360631 has 8 divisors (see below), whose sum is σ = 4362640128. Its totient is φ = 3632395000.

The previous prime is 3997360621. The next prime is 3997360639. The reversal of 3997360631 is 1360637993.

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-3997360631 is a prime.

It is a super-2 number, since 2×3997360631² = 31957784028537436322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997360639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51425 + ... + 103146.

It is an arithmetic number, because the mean of its divisors is an integer number (545330016).

Almost surely, 2^3997360631 is an apocalyptic number.

3997360631 is a deficient number, since it is larger than the sum of its proper divisors (365279497).

3997360631 is a wasteful number, since it uses less digits than its factorization.

3997360631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156933.

The product of its (nonzero) digits is 551124, while the sum is 47.

The square root of 3997360631 is about 63224.6837160930. The cubic root of 3997360631 is about 1587.0518303860.

The spelling of 3997360631 in words is "three billion, nine hundred ninety-seven million, three hundred sixty thousand, six hundred thirty-one".