72858323 has 4 divisors (see below), whose sum is σ = 72947040. Its totient is φ = 72769608.

The previous prime is 72858301. The next prime is 72858347. The reversal of 72858323 is 32385827.

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 72858323 - 2¹⁰ = 72857299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72858223) 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, 43115 + ... + 44772.

It is an arithmetic number, because the mean of its divisors is an integer number (18236760).

Almost surely, 2^72858323 is an apocalyptic number.

72858323 is a deficient number, since it is larger than the sum of its proper divisors (88717).

72858323 is an equidigital number, since it uses as much as digits as its factorization.

72858323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88716.

The product of its digits is 80640, while the sum is 38.

The square root of 72858323 is about 8535.7086993407. The cubic root of 72858323 is about 417.6633718259.

The spelling of 72858323 in words is "seventy-two million, eight hundred fifty-eight thousand, three hundred twenty-three".