72604773 has 12 divisors (see below), whose sum is σ = 111042828. Its totient is φ = 45555840.

The previous prime is 72604723. The next prime is 72604781. The reversal of 72604773 is 37740627.

It can be written as a sum of positive squares in 2 ways, for example, as 24621444 + 47983329 = 4962^2 + 6927^2 .

It is not a de Polignac number, because 72604773 - 2⁶ = 72604709 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72604703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237118 + ... + 237423.

It is an arithmetic number, because the mean of its divisors is an integer number (9253569).

Almost surely, 2^72604773 is an apocalyptic number.

It is an amenable number.

72604773 is a deficient number, since it is larger than the sum of its proper divisors (38438055).

72604773 is a wasteful number, since it uses less digits than its factorization.

72604773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474564 (or 474561 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 72604773 is about 8520.8434441668. The cubic root of 72604773 is about 417.1783134029.

The spelling of 72604773 in words is "seventy-two million, six hundred four thousand, seven hundred seventy-three".