72256623 has 8 divisors (see below), whose sum is σ = 96384048. Its totient is φ = 48150144.

The previous prime is 72256589. The next prime is 72256627. The reversal of 72256623 is 32665227.

It is a happy number.

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

It is not a de Polignac number, because 72256623 - 2⁶ = 72256559 is a prime.

It is a Smith number, since the sum of its digits (33) 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 (72256627) 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, 6711 + ... + 13767.

It is an arithmetic number, because the mean of its divisors is an integer number (12048006).

Almost surely, 2^72256623 is an apocalyptic number.

72256623 is a deficient number, since it is larger than the sum of its proper divisors (24127425).

72256623 is a wasteful number, since it uses less digits than its factorization.

72256623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10473.

The product of its digits is 30240, while the sum is 33.

The square root of 72256623 is about 8500.3895793075. The cubic root of 72256623 is about 416.5104353654.

The spelling of 72256623 in words is "seventy-two million, two hundred fifty-six thousand, six hundred twenty-three".