73390664 has 16 divisors (see below), whose sum is σ = 137732400. Its totient is φ = 36662032.

The previous prime is 73390663. The next prime is 73390679. The reversal of 73390664 is 46609337.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73390663) 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, 6947 + ... + 13965.

It is an arithmetic number, because the mean of its divisors is an integer number (8608275).

Almost surely, 2^73390664 is an apocalyptic number.

It is an amenable number.

73390664 is a deficient number, since it is larger than the sum of its proper divisors (64341736).

73390664 is a wasteful number, since it uses less digits than its factorization.

73390664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332 (or 8328 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 73390664 is about 8566.8351215604. The cubic root of 73390664 is about 418.6781267007.

The spelling of 73390664 in words is "seventy-three million, three hundred ninety thousand, six hundred sixty-four".