864898192 has 20 divisors (see below), whose sum is σ = 1683065020. Its totient is φ = 430558848.

The previous prime is 864898163. The next prime is 864898193. The reversal of 864898192 is 291898468.

It can be written as a sum of positive squares in 2 ways, for example, as 783104256 + 81793936 = 27984^2 + 9044^2 .

It is not an unprimeable number, because it can be changed into a prime (864898193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114363 + ... + 121690.

It is an arithmetic number, because the mean of its divisors is an integer number (84153251).

Almost surely, 2^864898192 is an apocalyptic number.

It is an amenable number.

864898192 is a deficient number, since it is larger than the sum of its proper divisors (818166828).

864898192 is a wasteful number, since it uses less digits than its factorization.

864898192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236290 (or 236284 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 55.

The square root of 864898192 is about 29409.1515008509. The cubic root of 864898192 is about 952.7705610742.

The spelling of 864898192 in words is "eight hundred sixty-four million, eight hundred ninety-eight thousand, one hundred ninety-two".