72330773 has 4 divisors (see below), whose sum is σ = 74012928. Its totient is φ = 70648620.

The previous prime is 72330763. The next prime is 72330779. The reversal of 72330773 is 37703327.

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 72330773 - 2¹² = 72326677 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 (72330779) 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, 841013 + ... + 841098.

It is an arithmetic number, because the mean of its divisors is an integer number (18503232).

Almost surely, 2^72330773 is an apocalyptic number.

It is an amenable number.

72330773 is a deficient number, since it is larger than the sum of its proper divisors (1682155).

72330773 is a wasteful number, since it uses less digits than its factorization.

72330773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682154.

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

The square root of 72330773 is about 8504.7500257209. The cubic root of 72330773 is about 416.6528614804.

The spelling of 72330773 in words is "seventy-two million, three hundred thirty thousand, seven hundred seventy-three".