865952896 has 16 divisors (see below), whose sum is σ = 1725140790. Its totient is φ = 432976384.

The previous prime is 865952887. The next prime is 865952917. The reversal of 865952896 is 698259568.

It can be written as a sum of positive squares in only one way, i.e., 799758400 + 66194496 = 28280^2 + 8136^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 865952896.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3382501 + ... + 3382756.

Almost surely, 2^865952896 is an apocalyptic number.

It is an amenable number.

865952896 is a deficient number, since it is larger than the sum of its proper divisors (859187894).

865952896 is an equidigital number, since it uses as much as digits as its factorization.

865952896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765271 (or 6765259 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 58.

The square root of 865952896 is about 29427.0775987015. The cubic root of 865952896 is about 953.1576905401.

The spelling of 865952896 in words is "eight hundred sixty-five million, nine hundred fifty-two thousand, eight hundred ninety-six".