73434664 has 8 divisors (see below), whose sum is σ = 137690010. Its totient is φ = 36717328.

The previous prime is 73434631. The next prime is 73434671. The reversal of 73434664 is 46643437.

It can be written as a sum of positive squares in only one way, i.e., 41602500 + 31832164 = 6450^2 + 5642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4589659 + ... + 4589674.

Almost surely, 2^73434664 is an apocalyptic number.

It is an amenable number.

73434664 is a deficient number, since it is larger than the sum of its proper divisors (64255346).

73434664 is a wasteful number, since it uses less digits than its factorization.

73434664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9179339 (or 9179335 counting only the distinct ones).

The product of its digits is 145152, while the sum is 37.

The square root of 73434664 is about 8569.4027796574. The cubic root of 73434664 is about 418.7617801988.

The spelling of 73434664 in words is "seventy-three million, four hundred thirty-four thousand, six hundred sixty-four".