73170916 has 81 divisors (see below), whose sum is σ = 164799369. Its totient is φ = 28330848.

The previous prime is 73170913. The next prime is 73170917. The reversal of 73170916 is 61907137.

It is a happy number.

The square root of 73170916 is 8554.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10824100 + 62346816 = 3290^2 + 7896^2 .

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (73170913) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1556805 + ... + 1556851.

Almost surely, 2^73170916 is an apocalyptic number.

73170916 is the 8554-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73170916

73170916 is an abundant number, since it is smaller than the sum of its proper divisors (91628453).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73170916 is a wasteful number, since it uses less digits than its factorization.

73170916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 34.

The cubic root of 73170916 is about 418.2598370731.

The spelling of 73170916 in words is "seventy-three million, one hundred seventy thousand, nine hundred sixteen".