72733373 has 4 divisors (see below), whose sum is σ = 73114368. Its totient is φ = 72352380.

The previous prime is 72733369. The next prime is 72733399. The reversal of 72733373 is 37333727.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72733373 - 2² = 72733369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72733333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190211 + ... + 190592.

It is an arithmetic number, because the mean of its divisors is an integer number (18278592).

Almost surely, 2^72733373 is an apocalyptic number.

It is an amenable number.

72733373 is a deficient number, since it is larger than the sum of its proper divisors (380995).

72733373 is a wasteful number, since it uses less digits than its factorization.

72733373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380994.

The product of its digits is 55566, while the sum is 35.

The square root of 72733373 is about 8528.3863069164. The cubic root of 72733373 is about 417.4244748464.

The spelling of 72733373 in words is "seventy-two million, seven hundred thirty-three thousand, three hundred seventy-three".