864028004 has 12 divisors (see below), whose sum is σ = 1728056064. Its totient is φ = 370297704.

The previous prime is 864027979. The next prime is 864028007. The reversal of 864028004 is 400820468.

864028004 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (864028007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15429044 + ... + 15429099.

It is an arithmetic number, because the mean of its divisors is an integer number (144004672).

Almost surely, 2^864028004 is an apocalyptic number.

It is an amenable number.

864028004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

864028004 is a wasteful number, since it uses less digits than its factorization.

864028004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30858154 (or 30858152 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 864028004 is about 29394.3532672519. The cubic root of 864028004 is about 952.4509212501.

The spelling of 864028004 in words is "eight hundred sixty-four million, twenty-eight thousand, four".