72179933 has 8 divisors (see below), whose sum is σ = 84721152. Its totient is φ = 60196176.

The previous prime is 72179903. The next prime is 72179969. The reversal of 72179933 is 33997127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72179933 - 2¹⁸ = 71917789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72179903) 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 in 7 ways as a sum of consecutive naturals, for example, 139085 + ... + 139602.

It is an arithmetic number, because the mean of its divisors is an integer number (10590144).

Almost surely, 2^72179933 is an apocalyptic number.

It is an amenable number.

72179933 is a deficient number, since it is larger than the sum of its proper divisors (12541219).

72179933 is a wasteful number, since it uses less digits than its factorization.

72179933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278731.

The product of its digits is 71442, while the sum is 41.

The square root of 72179933 is about 8495.8774120158. The cubic root of 72179933 is about 416.3630279200.

The spelling of 72179933 in words is "seventy-two million, one hundred seventy-nine thousand, nine hundred thirty-three".