872531064 has 24 divisors (see below), whose sum is σ = 2363105160. Its totient is φ = 290843664.

The previous prime is 872531057. The next prime is 872531087. The reversal of 872531064 is 460135278.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×872531064² = 1522620915289944192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6059172 + ... + 6059315.

It is an arithmetic number, because the mean of its divisors is an integer number (98462715).

Almost surely, 2^872531064 is an apocalyptic number.

It is an amenable number.

872531064 is an abundant number, since it is smaller than the sum of its proper divisors (1490574096).

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

872531064 is a wasteful number, since it uses less digits than its factorization.

872531064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12118499 (or 12118492 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 872531064 is about 29538.6367999608. The cubic root of 872531064 is about 955.5651430523.

The spelling of 872531064 in words is "eight hundred seventy-two million, five hundred thirty-one thousand, sixty-four".