72571933 has 8 divisors (see below), whose sum is σ = 83083968. Its totient is φ = 62096064.

The previous prime is 72571913. The next prime is 72571937. The reversal of 72571933 is 33917527.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72571933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72571892 and 72571901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72571937) 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, 4591 + ... + 12892.

It is an arithmetic number, because the mean of its divisors is an integer number (10385496).

Almost surely, 2^72571933 is an apocalyptic number.

It is an amenable number.

72571933 is a deficient number, since it is larger than the sum of its proper divisors (10512035).

72571933 is a wasteful number, since it uses less digits than its factorization.

72571933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18083.

The product of its digits is 39690, while the sum is 37.

The square root of 72571933 is about 8518.9161869336. The cubic root of 72571933 is about 417.1154056842.

The spelling of 72571933 in words is "seventy-two million, five hundred seventy-one thousand, nine hundred thirty-three".