64497008 has 20 divisors (see below), whose sum is σ = 127013448. Its totient is φ = 31719360.

The previous prime is 64497007. The next prime is 64497023. The reversal of 64497008 is 80079446.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64497007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32066 + ... + 34017.

Almost surely, 2^64497008 is an apocalyptic number.

It is an amenable number.

64497008 is a deficient number, since it is larger than the sum of its proper divisors (62516440).

64497008 is a wasteful number, since it uses less digits than its factorization.

64497008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66152 (or 66146 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 64497008 is about 8031.0029261606. The cubic root of 64497008 is about 401.0327645320.

The spelling of 64497008 in words is "sixty-four million, four hundred ninety-seven thousand, eight".