64427684 has 12 divisors (see below), whose sum is σ = 113199408. Its totient is φ = 32085000.

The previous prime is 64427663. The next prime is 64427719. The reversal of 64427684 is 48672446.

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, 31082 + ... + 33089.

It is an arithmetic number, because the mean of its divisors is an integer number (9433284).

Almost surely, 2^64427684 is an apocalyptic number.

It is an amenable number.

64427684 is a deficient number, since it is larger than the sum of its proper divisors (48771724).

64427684 is a wasteful number, since it uses less digits than its factorization.

64427684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64426 (or 64424 counting only the distinct ones).

The product of its digits is 258048, while the sum is 41.

The square root of 64427684 is about 8026.6857419485. The cubic root of 64427684 is about 400.8890309295.

The spelling of 64427684 in words is "sixty-four million, four hundred twenty-seven thousand, six hundred eighty-four".