397987094253 has 96 divisors (see below), whose sum is σ = 642339840000. Its totient is φ = 218316954240.

The previous prime is 397987094233. The next prime is 397987094257. The reversal of 397987094253 is 352490789793.

It is not a de Polignac number, because 397987094253 - 2⁶ = 397987094189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397987094257) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 561335463 + ... + 561336171.

It is an arithmetic number, because the mean of its divisors is an integer number (6691040000).

Almost surely, 2^397987094253 is an apocalyptic number.

It is an amenable number.

397987094253 is a deficient number, since it is larger than the sum of its proper divisors (244352745747).

397987094253 is a wasteful number, since it uses less digits than its factorization.

397987094253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1568 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 66.

The spelling of 397987094253 in words is "three hundred ninety-seven billion, nine hundred eighty-seven million, ninety-four thousand, two hundred fifty-three".