64663708 has 12 divisors (see below), whose sum is σ = 113331960. Its totient is φ = 32283152.

The previous prime is 64663673. The next prime is 64663759. The reversal of 64663708 is 80736646.

It is a plaindrome in base 11.

It is a congruent number.

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, 9103 + ... + 14566.

It is an arithmetic number, because the mean of its divisors is an integer number (9444330).

Almost surely, 2^64663708 is an apocalyptic number.

It is an amenable number.

64663708 is a deficient number, since it is larger than the sum of its proper divisors (48668252).

64663708 is a wasteful number, since it uses less digits than its factorization.

64663708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24356 (or 24354 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 64663708 is about 8041.3747580871. The cubic root of 64663708 is about 401.3779725282.

The spelling of 64663708 in words is "sixty-four million, six hundred sixty-three thousand, seven hundred eight".