64291684 has 12 divisors (see below), whose sum is σ = 114052204. Its totient is φ = 31705344.

The previous prime is 64291679. The next prime is 64291727. The reversal of 64291684 is 48619246.

It can be written as a sum of positive squares in 2 ways, for example, as 31114084 + 33177600 = 5578^2 + 5760^2 .

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, 109797 + ... + 110380.

Almost surely, 2^64291684 is an apocalyptic number.

It is an amenable number.

64291684 is a deficient number, since it is larger than the sum of its proper divisors (49760520).

64291684 is a wasteful number, since it uses less digits than its factorization.

64291684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220254 (or 220252 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 64291684 is about 8018.2095258231. The cubic root of 64291684 is about 400.6067541581.

The spelling of 64291684 in words is "sixty-four million, two hundred ninety-one thousand, six hundred eighty-four".