64490708 has 24 divisors (see below), whose sum is σ = 114250752. Its totient is φ = 31850784.

The previous prime is 64490681. The next prime is 64490729. The reversal of 64490708 is 80709446.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175541 + ... + 175907.

It is an arithmetic number, because the mean of its divisors is an integer number (4760448).

Almost surely, 2^64490708 is an apocalyptic number.

It is an amenable number.

64490708 is a deficient number, since it is larger than the sum of its proper divisors (49760044).

64490708 is a wasteful number, since it uses less digits than its factorization.

64490708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 789 counting only the distinct ones).

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

The square root of 64490708 is about 8030.6106866166. The cubic root of 64490708 is about 401.0197066204.

The spelling of 64490708 in words is "sixty-four million, four hundred ninety thousand, seven hundred eight".