72733073 has 8 divisors (see below), whose sum is σ = 85990080. Its totient is φ = 60192720.

The previous prime is 72733049. The next prime is 72733079. The reversal of 72733073 is 37033727.

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

It is not a de Polignac number, because 72733073 - 2²⁰ = 71684497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72733079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178943 + ... + 179348.

It is an arithmetic number, because the mean of its divisors is an integer number (10748760).

Almost surely, 2^72733073 is an apocalyptic number.

It is an amenable number.

72733073 is a deficient number, since it is larger than the sum of its proper divisors (13257007).

72733073 is a wasteful number, since it uses less digits than its factorization.

72733073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358327.

The product of its (nonzero) digits is 18522, while the sum is 32.

The square root of 72733073 is about 8528.3687185768. The cubic root of 72733073 is about 417.4239009351.

The spelling of 72733073 in words is "seventy-two million, seven hundred thirty-three thousand, seventy-three".