72973268 has 12 divisors (see below), whose sum is σ = 129242400. Its totient is φ = 36046872.

The previous prime is 72973237. The next prime is 72973283. The reversal of 72973268 is 86237927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109568 + ... + 110231.

It is an arithmetic number, because the mean of its divisors is an integer number (10770200).

Almost surely, 2^72973268 is an apocalyptic number.

It is an amenable number.

72973268 is a deficient number, since it is larger than the sum of its proper divisors (56269132).

72973268 is a wasteful number, since it uses less digits than its factorization.

72973268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219886 (or 219884 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 72973268 is about 8542.4392301028. The cubic root of 72973268 is about 417.8828987544.

The spelling of 72973268 in words is "seventy-two million, nine hundred seventy-three thousand, two hundred sixty-eight".