64810672 has 20 divisors (see below), whose sum is σ = 132180280. Its totient is φ = 30699648.

The previous prime is 64810661. The next prime is 64810687. The reversal of 64810672 is 27601846.

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, 106293 + ... + 106900.

It is an arithmetic number, because the mean of its divisors is an integer number (6609014).

Almost surely, 2^64810672 is an apocalyptic number.

It is an amenable number.

64810672 is an abundant number, since it is smaller than the sum of its proper divisors (67369608).

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

64810672 is a wasteful number, since it uses less digits than its factorization.

64810672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213220 (or 213214 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 64810672 is about 8050.5075616386. The cubic root of 64810672 is about 401.6818188033.

The spelling of 64810672 in words is "sixty-four million, eight hundred ten thousand, six hundred seventy-two".