64957684 has 12 divisors (see below), whose sum is σ = 124010208. Its totient is φ = 29526200.

The previous prime is 64957631. The next prime is 64957691. The reversal of 64957684 is 48675946.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738112 + ... + 738199.

It is an arithmetic number, because the mean of its divisors is an integer number (10334184).

Almost surely, 2^64957684 is an apocalyptic number.

It is an amenable number.

64957684 is a deficient number, since it is larger than the sum of its proper divisors (59052524).

64957684 is a wasteful number, since it uses less digits than its factorization.

64957684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476326 (or 1476324 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 64957684 is about 8059.6329941257. The cubic root of 64957684 is about 401.9853051071.

The spelling of 64957684 in words is "sixty-four million, nine hundred fifty-seven thousand, six hundred eighty-four".