864504066 has 32 divisors (see below), whose sum is σ = 1823097600. Its totient is φ = 272538000.

The previous prime is 864503999. The next prime is 864504073. The reversal of 864504066 is 660405468.

It is a Curzon number.

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, 64441 + ... + 76691.

It is an arithmetic number, because the mean of its divisors is an integer number (56971800).

Almost surely, 2^864504066 is an apocalyptic number.

864504066 is an abundant number, since it is smaller than the sum of its proper divisors (958593534).

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

864504066 is a wasteful number, since it uses less digits than its factorization.

864504066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 864504066 is about 29402.4499999575. The cubic root of 864504066 is about 952.6258162140.

The spelling of 864504066 in words is "eight hundred sixty-four million, five hundred four thousand, sixty-six".