397787364631 has 8 divisors (see below), whose sum is σ = 421241438304. Its totient is φ = 374339381760.

The previous prime is 397787364599. The next prime is 397787364641. The reversal of 397787364631 is 136463787793.

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

It is a cyclic number.

It is not a de Polignac number, because 397787364631 - 2⁵ = 397787364599 is a prime.

It is a super-2 number, since 2×397787364631² (a number of 24 digits) 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 (397787364641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1387890 + ... + 1649791.

It is an arithmetic number, because the mean of its divisors is an integer number (52655179788).

Almost surely, 2^397787364631 is an apocalyptic number.

397787364631 is a deficient number, since it is larger than the sum of its proper divisors (23454073673).

397787364631 is a wasteful number, since it uses less digits than its factorization.

397787364631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045401.

The product of its digits is 96018048, while the sum is 64.

The spelling of 397787364631 in words is "three hundred ninety-seven billion, seven hundred eighty-seven million, three hundred sixty-four thousand, six hundred thirty-one".