73164436 has 6 divisors (see below), whose sum is σ = 128037770. Its totient is φ = 36582216.

The previous prime is 73164409. The next prime is 73164491. The reversal of 73164436 is 63446137.

It can be written as a sum of positive squares in only one way, i.e., 70896400 + 2268036 = 8420^2 + 1506^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9145551 + ... + 9145558.

Almost surely, 2^73164436 is an apocalyptic number.

It is an amenable number.

73164436 is a deficient number, since it is larger than the sum of its proper divisors (54873334).

73164436 is a wasteful number, since it uses less digits than its factorization.

73164436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18291113 (or 18291111 counting only the distinct ones).

The product of its digits is 36288, while the sum is 34.

The square root of 73164436 is about 8553.6212214477. The cubic root of 73164436 is about 418.2474897093.

The spelling of 73164436 in words is "seventy-three million, one hundred sixty-four thousand, four hundred thirty-six".