397716417357 has 32 divisors (see below), whose sum is σ = 622787391744. Its totient is φ = 220994956800.

The previous prime is 397716417349. The next prime is 397716417403. The reversal of 397716417357 is 753714617793.

It is not a de Polignac number, because 397716417357 - 2³ = 397716417349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397716417357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397716407357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188507 + ... + 1485927.

It is an arithmetic number, because the mean of its divisors is an integer number (19462105992).

Almost surely, 2^397716417357 is an apocalyptic number.

397716417357 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

397716417357 is a deficient number, since it is larger than the sum of its proper divisors (225070974387).

397716417357 is a wasteful number, since it uses less digits than its factorization.

397716417357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299189.

The product of its digits is 23337720, while the sum is 60.

The spelling of 397716417357 in words is "three hundred ninety-seven billion, seven hundred sixteen million, four hundred seventeen thousand, three hundred fifty-seven".