64416980 has 12 divisors (see below), whose sum is σ = 135275700. Its totient is φ = 25766784.

The previous prime is 64416959. The next prime is 64417007. The reversal of 64416980 is 8961446.

It can be written as a sum of positive squares in 2 ways, for example, as 7595536 + 56821444 = 2756^2 + 7538^2 .

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, 1610405 + ... + 1610444.

It is an arithmetic number, because the mean of its divisors is an integer number (11272975).

Almost surely, 2^64416980 is an apocalyptic number.

It is an amenable number.

64416980 is an abundant number, since it is smaller than the sum of its proper divisors (70858720).

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

64416980 is a wasteful number, since it uses less digits than its factorization.

64416980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220858 (or 3220856 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 64416980 is about 8026.0189384277. The cubic root of 64416980 is about 400.8668284973.

The spelling of 64416980 in words is "sixty-four million, four hundred sixteen thousand, nine hundred eighty".