72975423 has 8 divisors (see below), whose sum is σ = 97805488. Its totient is φ = 48397824.

The previous prime is 72975401. The next prime is 72975437. The reversal of 72975423 is 32457927.

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

It is not a de Polignac number, because 72975423 - 2⁸ = 72975167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72975473) 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 7 ways as a sum of consecutive naturals, for example, 62440 + ... + 63597.

It is an arithmetic number, because the mean of its divisors is an integer number (12225686).

Almost surely, 2^72975423 is an apocalyptic number.

72975423 is a deficient number, since it is larger than the sum of its proper divisors (24830065).

72975423 is a wasteful number, since it uses less digits than its factorization.

72975423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126233.

The product of its digits is 105840, while the sum is 39.

The square root of 72975423 is about 8542.5653641046. The cubic root of 72975423 is about 417.8870122643.

It can be divided in two parts, 7297 and 5423, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 72975423 in words is "seventy-two million, nine hundred seventy-five thousand, four hundred twenty-three".