864994898 has 4 divisors (see below), whose sum is σ = 1297492350. Its totient is φ = 432497448.

The previous prime is 864994883. The next prime is 864994903. The reversal of 864994898 is 898499468.

864994898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 859486489 + 5508409 = 29317^2 + 2347^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216248723 + ... + 216248726.

Almost surely, 2^864994898 is an apocalyptic number.

864994898 is a deficient number, since it is larger than the sum of its proper divisors (432497452).

864994898 is a wasteful number, since it uses less digits than its factorization.

864994898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432497451.

The product of its digits is 35831808, while the sum is 65.

The square root of 864994898 is about 29410.7956029754. The cubic root of 864994898 is about 952.8060701460.

The spelling of 864994898 in words is "eight hundred sixty-four million, nine hundred ninety-four thousand, eight hundred ninety-eight".