812002965 has 16 divisors (see below), whose sum is σ = 1299691008. Its totient is φ = 432906176.

The previous prime is 812002957. The next prime is 812002967. The reversal of 812002965 is 569200218.

It is a cyclic number.

It is not a de Polignac number, because 812002965 - 2³ = 812002957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812002967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38959 + ... + 56051.

It is an arithmetic number, because the mean of its divisors is an integer number (81230688).

Almost surely, 2^812002965 is an apocalyptic number.

It is an amenable number.

812002965 is a deficient number, since it is larger than the sum of its proper divisors (487688043).

812002965 is a wasteful number, since it uses less digits than its factorization.

812002965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20268.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 812002965 is about 28495.6657230534. The cubic root of 812002965 is about 932.9374746293.

The spelling of 812002965 in words is "eight hundred twelve million, two thousand, nine hundred sixty-five".