870636822 has 32 divisors (see below), whose sum is σ = 1906619904. Its totient is φ = 262850400.

The previous prime is 870636817. The next prime is 870636853. The reversal of 870636822 is 228636078.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6453 + ... + 42224.

It is an arithmetic number, because the mean of its divisors is an integer number (59581872).

Almost surely, 2^870636822 is an apocalyptic number.

870636822 is an abundant number, since it is smaller than the sum of its proper divisors (1035983082).

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

870636822 is a wasteful number, since it uses less digits than its factorization.

870636822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48964.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 870636822 is about 29506.5555766850. Note that the first 4 decimals coincide. The cubic root of 870636822 is about 954.8731397692.

The spelling of 870636822 in words is "eight hundred seventy million, six hundred thirty-six thousand, eight hundred twenty-two".