396499655 has 4 divisors (see below), whose sum is σ = 475799592. Its totient is φ = 317199720.

The previous prime is 396499627. The next prime is 396499669. The reversal of 396499655 is 556994693.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 396499655 - 2⁶ = 396499591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396499655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39649961 + ... + 39649970.

It is an arithmetic number, because the mean of its divisors is an integer number (118949898).

Almost surely, 2^396499655 is an apocalyptic number.

396499655 is a deficient number, since it is larger than the sum of its proper divisors (79299937).

396499655 is an equidigital number, since it uses as much as digits as its factorization.

396499655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79299936.

The product of its digits is 7873200, while the sum is 56.

The square root of 396499655 is about 19912.2990887542. The cubic root of 396499655 is about 734.6507696588.

The spelling of 396499655 in words is "three hundred ninety-six million, four hundred ninety-nine thousand, six hundred fifty-five".