865052900 has 36 divisors (see below), whose sum is σ = 1975967280. Its totient is φ = 327808800.

The previous prime is 865052893. The next prime is 865052911. The reversal of 865052900 is 9250568.

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, 225746 + ... + 229545.

It is an arithmetic number, because the mean of its divisors is an integer number (54887980).

Almost surely, 2^865052900 is an apocalyptic number.

It is an amenable number.

865052900 is an abundant number, since it is smaller than the sum of its proper divisors (1110914380).

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

865052900 is a wasteful number, since it uses less digits than its factorization.

865052900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455324 (or 455317 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 865052900 is about 29411.7816529363. The cubic root of 865052900 is about 952.8273663882.

The spelling of 865052900 in words is "eight hundred sixty-five million, fifty-two thousand, nine hundred".