65870964 has 36 divisors (see below), whose sum is σ = 167243076. Its totient is φ = 21859968.

The previous prime is 65870951. The next prime is 65871007. The reversal of 65870964 is 46907856.

65870964 is a `hidden beast` number, since 6 + 587 + 0 + 9 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5963364 + 59907600 = 2442^2 + 7740^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4462 + ... + 12314.

It is an arithmetic number, because the mean of its divisors is an integer number (4645641).

Almost surely, 2^65870964 is an apocalyptic number.

It is an amenable number.

65870964 is an abundant number, since it is smaller than the sum of its proper divisors (101372112).

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

65870964 is a wasteful number, since it uses less digits than its factorization.

65870964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8096 (or 8091 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 65870964 is about 8116.0929023761. The cubic root of 65870964 is about 403.8604638529.

The spelling of 65870964 in words is "sixty-five million, eight hundred seventy thousand, nine hundred sixty-four".