73072612 has 12 divisors (see below), whose sum is σ = 129786160. Its totient is φ = 35990856.

The previous prime is 73072607. The next prime is 73072627. The reversal of 73072612 is 21627037.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136062 + ... + 136597.

Almost surely, 2^73072612 is an apocalyptic number.

It is an amenable number.

73072612 is a deficient number, since it is larger than the sum of its proper divisors (56713548).

73072612 is a wasteful number, since it uses less digits than its factorization.

73072612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272730 (or 272728 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 73072612 is about 8548.2519850552. The cubic root of 73072612 is about 418.0724445761.

Adding to 73072612 its reverse (21627037), we get a palindrome (94699649).

The spelling of 73072612 in words is "seventy-three million, seventy-two thousand, six hundred twelve".