65982864 has 40 divisors (see below), whose sum is σ = 171011872. Its totient is φ = 21922560.

The previous prime is 65982853. The next prime is 65982871. The reversal of 65982864 is 46828956.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13812 + ... + 17964.

Almost surely, 2^65982864 is an apocalyptic number.

It is an amenable number.

65982864 is an abundant number, since it is smaller than the sum of its proper divisors (105029008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65982864 is a wasteful number, since it uses less digits than its factorization.

65982864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495 (or 4489 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 65982864 is about 8122.9836882761. The cubic root of 65982864 is about 404.0890239394.

The spelling of 65982864 in words is "sixty-five million, nine hundred eighty-two thousand, eight hundred sixty-four".