65902863 has 16 divisors (see below), whose sum is σ = 100197216. Its totient is φ = 38169600.

The previous prime is 65902847. The next prime is 65902909. The reversal of 65902863 is 36820956.

It is not a de Polignac number, because 65902863 - 2⁴ = 65902847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65902813) 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, 49038 + ... + 50363.

It is an arithmetic number, because the mean of its divisors is an integer number (6262326).

Almost surely, 2^65902863 is an apocalyptic number.

65902863 is a deficient number, since it is larger than the sum of its proper divisors (34294353).

65902863 is a wasteful number, since it uses less digits than its factorization.

65902863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99434.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 65902863 is about 8118.0578342360. The cubic root of 65902863 is about 403.9256451567.

It can be divided in two parts, 6590 and 2863, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 65902863 in words is "sixty-five million, nine hundred two thousand, eight hundred sixty-three".