65854864 has 20 divisors (see below), whose sum is σ = 128516080. Its totient is φ = 32689440.

The previous prime is 65854861. The next prime is 65854891. The reversal of 65854864 is 46845856.

It is a super-2 number, since 2×65854864² = 8673726224916992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65854861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12582 + ... + 17029.

It is an arithmetic number, because the mean of its divisors is an integer number (6425804).

Almost surely, 2^65854864 is an apocalyptic number.

It is an amenable number.

65854864 is a deficient number, since it is larger than the sum of its proper divisors (62661216).

65854864 is a wasteful number, since it uses less digits than its factorization.

65854864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29758 (or 29752 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The square root of 65854864 is about 8115.1009852004. The cubic root of 65854864 is about 403.8275576836.

It can be divided in two parts, 6585 and 4864, that added together give a square (11449 = 107²).

The spelling of 65854864 in words is "sixty-five million, eight hundred fifty-four thousand, eight hundred sixty-four".