64706984 has 8 divisors (see below), whose sum is σ = 121325610. Its totient is φ = 32353488.

The previous prime is 64706977. The next prime is 64707001. The reversal of 64706984 is 48960746.

It can be written as a sum of positive squares in only one way, i.e., 43270084 + 21436900 = 6578^2 + 4630^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4044179 + ... + 4044194.

Almost surely, 2^64706984 is an apocalyptic number.

It is an amenable number.

64706984 is a deficient number, since it is larger than the sum of its proper divisors (56618626).

64706984 is a wasteful number, since it uses less digits than its factorization.

64706984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088379 (or 8088375 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 64706984 is about 8044.0651414568. The cubic root of 64706984 is about 401.4674929108.

The spelling of 64706984 in words is "sixty-four million, seven hundred six thousand, nine hundred eighty-four".