864814722 has 32 divisors (see below), whose sum is σ = 1789409664. Its totient is φ = 278448000.

The previous prime is 864814669. The next prime is 864814733. The reversal of 864814722 is 227418468.

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 15 ways as a sum of consecutive naturals, for example, 7443 + ... + 42249.

It is an arithmetic number, because the mean of its divisors is an integer number (55919052).

Almost surely, 2^864814722 is an apocalyptic number.

864814722 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

864814722 is an abundant number, since it is smaller than the sum of its proper divisors (924594942).

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

864814722 is a wasteful number, since it uses less digits than its factorization.

864814722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34954.

The product of its digits is 172032, while the sum is 42.

The square root of 864814722 is about 29407.7323505231. The cubic root of 864814722 is about 952.7399099456.

The spelling of 864814722 in words is "eight hundred sixty-four million, eight hundred fourteen thousand, seven hundred twenty-two".