390696427 has 8 divisors (see below), whose sum is σ = 427985712. Its totient is φ = 353702400.

The previous prime is 390696367. The next prime is 390696437. The reversal of 390696427 is 724696093.

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 390696427 - 2²³ = 382307819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390696437) 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, 71038 + ... + 76339.

It is an arithmetic number, because the mean of its divisors is an integer number (53498214).

Almost surely, 2^390696427 is an apocalyptic number.

390696427 is a deficient number, since it is larger than the sum of its proper divisors (37289285).

390696427 is a wasteful number, since it uses less digits than its factorization.

390696427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147629.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 390696427 is about 19766.0422695086. The cubic root of 390696427 is about 731.0489873183.

The spelling of 390696427 in words is "three hundred ninety million, six hundred ninety-six thousand, four hundred twenty-seven".