72323193 has 4 divisors (see below), whose sum is σ = 96430928. Its totient is φ = 48215460.

The previous prime is 72323179. The next prime is 72323213. The reversal of 72323193 is 39132327.

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 not a de Polignac number, because 72323193 - 2⁵ = 72323161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72323193.

It is not an unprimeable number, because it can be changed into a prime (72323113) 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, 12053863 + ... + 12053868.

It is an arithmetic number, because the mean of its divisors is an integer number (24107732).

Almost surely, 2^72323193 is an apocalyptic number.

It is an amenable number.

72323193 is a deficient number, since it is larger than the sum of its proper divisors (24107735).

72323193 is a wasteful number, since it uses less digits than its factorization.

72323193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24107734.

The product of its digits is 6804, while the sum is 30.

The square root of 72323193 is about 8504.3043807239. The cubic root of 72323193 is about 416.6383064075.

The spelling of 72323193 in words is "seventy-two million, three hundred twenty-three thousand, one hundred ninety-three".