72192957 has 8 divisors (see below), whose sum is σ = 98858976. Its totient is φ = 46827792.

The previous prime is 72192947. The next prime is 72192959. The reversal of 72192957 is 75929127.

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

It is not a de Polignac number, because 72192957 - 2²² = 67998653 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72192959) 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, 325083 + ... + 325304.

It is an arithmetic number, because the mean of its divisors is an integer number (12357372).

Almost surely, 2^72192957 is an apocalyptic number.

It is an amenable number.

72192957 is a deficient number, since it is larger than the sum of its proper divisors (26666019).

72192957 is a wasteful number, since it uses less digits than its factorization.

72192957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650427.

The product of its digits is 79380, while the sum is 42.

The square root of 72192957 is about 8496.6438668453. The cubic root of 72192957 is about 416.3880689793.

The spelling of 72192957 in words is "seventy-two million, one hundred ninety-two thousand, nine hundred fifty-seven".