329967864 has 32 divisors (see below), whose sum is σ = 916578000. Its totient is φ = 109989216.

The previous prime is 329967779. The next prime is 329967901. The reversal of 329967864 is 468769923.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 329967864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763599 + ... + 764030.

Almost surely, 2^329967864 is an apocalyptic number.

It is an amenable number.

329967864 is an abundant number, since it is smaller than the sum of its proper divisors (586610136).

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

329967864 is a wasteful number, since it uses less digits than its factorization.

329967864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527644 (or 1527634 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 329967864 is about 18165.0175887611. The cubic root of 329967864 is about 691.0198906203.

The spelling of 329967864 in words is "three hundred twenty-nine million, nine hundred sixty-seven thousand, eight hundred sixty-four".