864849025 has 12 divisors (see below), whose sum is σ = 1077808000. Its totient is φ = 688398480.

The previous prime is 864848987. The next prime is 864849043. The reversal of 864849025 is 520948468.

It is not a de Polignac number, because 864849025 - 2⁹ = 864848513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81945 + ... + 91894.

Almost surely, 2^864849025 is an apocalyptic number.

It is an amenable number.

864849025 is a deficient number, since it is larger than the sum of its proper divisors (212958975).

864849025 is a wasteful number, since it uses less digits than its factorization.

864849025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174048 (or 174043 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 864849025 is about 29408.3155757007. The cubic root of 864849025 is about 952.7525066341.

The spelling of 864849025 in words is "eight hundred sixty-four million, eight hundred forty-nine thousand, twenty-five".