73380872 has 8 divisors (see below), whose sum is σ = 137589150. Its totient is φ = 36690432.

The previous prime is 73380821. The next prime is 73380877. The reversal of 73380872 is 27808337.

It can be written as a sum of positive squares in only one way, i.e., 64224196 + 9156676 = 8014^2 + 3026^2 .

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

It is not an unprimeable number, because it can be changed into a prime (73380877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4586297 + ... + 4586312.

Almost surely, 2^73380872 is an apocalyptic number.

It is an amenable number.

73380872 is a deficient number, since it is larger than the sum of its proper divisors (64208278).

73380872 is a wasteful number, since it uses less digits than its factorization.

73380872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9172615 (or 9172611 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 73380872 is about 8566.2635962244. The cubic root of 73380872 is about 418.6595054468.

The spelling of 73380872 in words is "seventy-three million, three hundred eighty thousand, eight hundred seventy-two".