396785715 has 8 divisors (see below), whose sum is σ = 634857168. Its totient is φ = 211619040.

The previous prime is 396785713. The next prime is 396785717. The reversal of 396785715 is 517587693.

It is an interprime number because it is at equal distance from previous prime (396785713) and next prime (396785717).

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

It is not a de Polignac number, because 396785715 - 2¹ = 396785713 is a prime.

It is a super-2 number, since 2×396785715² = 314877807256122450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (396785713) 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, 13226176 + ... + 13226205.

It is an arithmetic number, because the mean of its divisors is an integer number (79357146).

Almost surely, 2^396785715 is an apocalyptic number.

396785715 is a deficient number, since it is larger than the sum of its proper divisors (238071453).

396785715 is a wasteful number, since it uses less digits than its factorization.

396785715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26452389.

The product of its digits is 1587600, while the sum is 51.

The square root of 396785715 is about 19919.4807914263. The cubic root of 396785715 is about 734.8274017418.

The spelling of 396785715 in words is "three hundred ninety-six million, seven hundred eighty-five thousand, seven hundred fifteen".