65767864 has 16 divisors (see below), whose sum is σ = 127293120. Its totient is φ = 31823040.

The previous prime is 65767811. The next prime is 65767901. The reversal of 65767864 is 46876756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132349 + ... + 132844.

It is an arithmetic number, because the mean of its divisors is an integer number (7955820).

Almost surely, 2^65767864 is an apocalyptic number.

It is an amenable number.

65767864 is a deficient number, since it is larger than the sum of its proper divisors (61525256).

65767864 is a wasteful number, since it uses less digits than its factorization.

65767864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265230 (or 265226 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 49.

The square root of 65767864 is about 8109.7388367320. The cubic root of 65767864 is about 403.6496488803.

The spelling of 65767864 in words is "sixty-five million, seven hundred sixty-seven thousand, eight hundred sixty-four".