396785315 has 8 divisors (see below), whose sum is σ = 479176080. Its totient is φ = 315405792.

The previous prime is 396785281. The next prime is 396785317. The reversal of 396785315 is 513587693.

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 396785315 - 2⁶ = 396785251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396785315.

It is not an unprimeable number, because it can be changed into a prime (396785317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251945 + ... + 253514.

It is an arithmetic number, because the mean of its divisors is an integer number (59897010).

Almost surely, 2^396785315 is an apocalyptic number.

396785315 is a deficient number, since it is larger than the sum of its proper divisors (82390765).

396785315 is a wasteful number, since it uses less digits than its factorization.

396785315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505621.

The product of its digits is 680400, while the sum is 47.

The square root of 396785315 is about 19919.4707510014. The cubic root of 396785315 is about 734.8271548150.

The spelling of 396785315 in words is "three hundred ninety-six million, seven hundred eighty-five thousand, three hundred fifteen".