864829770 has 64 divisors (see below), whose sum is σ = 2374444800. Its totient is φ = 197480448.

The previous prime is 864829753. The next prime is 864829789. The reversal of 864829770 is 77928468.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408234 + ... + 410346.

It is an arithmetic number, because the mean of its divisors is an integer number (37100700).

Almost surely, 2^864829770 is an apocalyptic number.

864829770 is an abundant number, since it is smaller than the sum of its proper divisors (1509615030).

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

864829770 is a wasteful number, since it uses less digits than its factorization.

864829770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 864829770 is about 29407.9882004873. The cubic root of 864829770 is about 952.7454358872.

The spelling of 864829770 in words is "eight hundred sixty-four million, eight hundred twenty-nine thousand, seven hundred seventy".