397801715 has 8 divisors (see below), whose sum is σ = 478869840. Its totient is φ = 317236192.

The previous prime is 397801709. The next prime is 397801741. The reversal of 397801715 is 517108793.

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 397801715 - 2¹⁰ = 397800691 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123905 + ... + 127074.

It is an arithmetic number, because the mean of its divisors is an integer number (59858730).

Almost surely, 2^397801715 is an apocalyptic number.

397801715 is a deficient number, since it is larger than the sum of its proper divisors (81068125).

397801715 is a wasteful number, since it uses less digits than its factorization.

397801715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251301.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 397801715 is about 19944.9671596621. The cubic root of 397801715 is about 735.4540609922.

The spelling of 397801715 in words is "three hundred ninety-seven million, eight hundred one thousand, seven hundred fifteen".