396994764 has 48 divisors (see below), whose sum is σ = 941780448. Its totient is φ = 130142208.

The previous prime is 396994747. The next prime is 396994781. The reversal of 396994764 is 467499693.

It is an interprime number because it is at equal distance from previous prime (396994747) and next prime (396994781).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184704 + ... + 186840.

It is an arithmetic number, because the mean of its divisors is an integer number (19620426).

Almost surely, 2^396994764 is an apocalyptic number.

It is an amenable number.

396994764 is an abundant number, since it is smaller than the sum of its proper divisors (544785684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396994764 is a wasteful number, since it uses less digits than its factorization.

396994764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394 (or 2392 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 57.

The square root of 396994764 is about 19924.7274510845. The cubic root of 396994764 is about 734.9564285338.

The spelling of 396994764 in words is "three hundred ninety-six million, nine hundred ninety-four thousand, seven hundred sixty-four".