64764164 has 6 divisors (see below), whose sum is σ = 113337294. Its totient is φ = 32382080.

The previous prime is 64764157. The next prime is 64764197. The reversal of 64764164 is 46146746.

It can be written as a sum of positive squares in only one way, i.e., 37724164 + 27040000 = 6142^2 + 5200^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8095517 + ... + 8095524.

It is an arithmetic number, because the mean of its divisors is an integer number (18889549).

Almost surely, 2^64764164 is an apocalyptic number.

It is an amenable number.

64764164 is a deficient number, since it is larger than the sum of its proper divisors (48573130).

64764164 is a wasteful number, since it uses less digits than its factorization.

64764164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16191045 (or 16191043 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 64764164 is about 8047.6185297267. The cubic root of 64764164 is about 401.5857138059.

The spelling of 64764164 in words is "sixty-four million, seven hundred sixty-four thousand, one hundred sixty-four".