864437088 has 48 divisors (see below), whose sum is σ = 2270661120. Its totient is φ = 287953536.

The previous prime is 864437051. The next prime is 864437089. The reversal of 864437088 is 880734468.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864437089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275593 + ... + 278711.

It is an arithmetic number, because the mean of its divisors is an integer number (47305440).

Almost surely, 2^864437088 is an apocalyptic number.

It is an amenable number.

864437088 is an abundant number, since it is smaller than the sum of its proper divisors (1406224032).

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

864437088 is a wasteful number, since it uses less digits than its factorization.

864437088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019 (or 6011 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 864437088 is about 29401.3109911786. The cubic root of 864437088 is about 952.6012138159.

The spelling of 864437088 in words is "eight hundred sixty-four million, four hundred thirty-seven thousand, eighty-eight".