870722064 has 45 divisors (see below), whose sum is σ = 2437803823. Its totient is φ = 290122656.

The previous prime is 870722003. The next prime is 870722081. The reversal of 870722064 is 460227078.

The square root of 870722064 is 29508.

It is a perfect power (a square), and thus also a powerful number.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 352867 + ... + 355325.

Almost surely, 2^870722064 is an apocalyptic number.

870722064 is the 29508-th square number.

It is an amenable number.

870722064 is an abundant number, since it is smaller than the sum of its proper divisors (1567081759).

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

870722064 is an equidigital number, since it uses as much as digits as its factorization.

870722064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932 (or 2464 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The cubic root of 870722064 is about 954.9043018787.

Multiplying 870722064 by its sum of digits (36), we get a square (31345994304 = 177048²).

870722064 divided by its sum of digits (36) gives a square (24186724 = 4918²).

The spelling of 870722064 in words is "eight hundred seventy million, seven hundred twenty-two thousand, sixty-four".