72673324 has 12 divisors (see below), whose sum is σ = 127312864. Its totient is φ = 36298224.

The previous prime is 72673319. The next prime is 72673339. The reversal of 72673324 is 42337627.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72673324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5124 + ... + 13099.

Almost surely, 2^72673324 is an apocalyptic number.

It is an amenable number.

72673324 is a deficient number, since it is larger than the sum of its proper divisors (54639540).

72673324 is a wasteful number, since it uses less digits than its factorization.

72673324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19224 (or 19222 counting only the distinct ones).

The product of its digits is 42336, while the sum is 34.

The square root of 72673324 is about 8524.8650429200. The cubic root of 72673324 is about 417.3095673764.

The spelling of 72673324 in words is "seventy-two million, six hundred seventy-three thousand, three hundred twenty-four".