72916323 has 4 divisors (see below), whose sum is σ = 97221768. Its totient is φ = 48610880.

The previous prime is 72916267. The next prime is 72916331. The reversal of 72916323 is 32361927.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72916323 - 2¹⁰ = 72915299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72916423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12152718 + ... + 12152723.

It is an arithmetic number, because the mean of its divisors is an integer number (24305442).

Almost surely, 2^72916323 is an apocalyptic number.

72916323 is a deficient number, since it is larger than the sum of its proper divisors (24305445).

72916323 is a wasteful number, since it uses less digits than its factorization.

72916323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24305444.

The product of its digits is 13608, while the sum is 33.

The square root of 72916323 is about 8539.1055152165. The cubic root of 72916323 is about 417.7741715685.

The spelling of 72916323 in words is "seventy-two million, nine hundred sixteen thousand, three hundred twenty-three".