864053628 has 24 divisors (see below), whose sum is σ = 2134721232. Its totient is φ = 271075584.

The previous prime is 864053621. The next prime is 864053699. The reversal of 864053628 is 826350468.

It is a self number, because there is not a number n which added to its sum of digits gives 864053628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864053621) 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, 2117575 + ... + 2117982.

It is an arithmetic number, because the mean of its divisors is an integer number (88946718).

Almost surely, 2^864053628 is an apocalyptic number.

It is an amenable number.

864053628 is an abundant number, since it is smaller than the sum of its proper divisors (1270667604).

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

864053628 is a wasteful number, since it uses less digits than its factorization.

864053628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235581 (or 4235579 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 864053628 is about 29394.7891300482. The cubic root of 864053628 is about 952.4603365935.

The spelling of 864053628 in words is "eight hundred sixty-four million, fifty-three thousand, six hundred twenty-eight".