73228916 has 6 divisors (see below), whose sum is σ = 128150610. Its totient is φ = 36614456.

The previous prime is 73228879. The next prime is 73228919. The reversal of 73228916 is 61982237.

It can be written as a sum of positive squares in only one way, i.e., 60124516 + 13104400 = 7754^2 + 3620^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73228916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73228919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9153611 + ... + 9153618.

It is an arithmetic number, because the mean of its divisors is an integer number (21358435).

Almost surely, 2^73228916 is an apocalyptic number.

It is an amenable number.

73228916 is a deficient number, since it is larger than the sum of its proper divisors (54921694).

73228916 is a wasteful number, since it uses less digits than its factorization.

73228916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18307233 (or 18307231 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 73228916 is about 8557.3895552324. The cubic root of 73228916 is about 418.3703211512.

The spelling of 73228916 in words is "seventy-three million, two hundred twenty-eight thousand, nine hundred sixteen".