72297323 has 8 divisors (see below), whose sum is σ = 82689792. Its totient is φ = 61920936.

The previous prime is 72297317. The next prime is 72297331. The reversal of 72297323 is 32379227.

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

It is not a de Polignac number, because 72297323 - 2⁴ = 72297307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72293323) 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, 8036 + ... + 14462.

It is an arithmetic number, because the mean of its divisors is an integer number (10336224).

Almost surely, 2^72297323 is an apocalyptic number.

72297323 is a deficient number, since it is larger than the sum of its proper divisors (10392469).

72297323 is a wasteful number, since it uses less digits than its factorization.

72297323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8041.

The product of its digits is 31752, while the sum is 35.

The square root of 72297323 is about 8502.7832502070. The cubic root of 72297323 is about 416.5886233209.

The spelling of 72297323 in words is "seventy-two million, two hundred ninety-seven thousand, three hundred twenty-three".