72689223 has 8 divisors (see below), whose sum is σ = 101132928. Its totient is φ = 46352504.

The previous prime is 72689219. The next prime is 72689233. The reversal of 72689223 is 32298627.

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

It is a cyclic number.

It is not a de Polignac number, because 72689223 - 2² = 72689219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72689233) 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, 526665 + ... + 526802.

It is an arithmetic number, because the mean of its divisors is an integer number (12641616).

Almost surely, 2^72689223 is an apocalyptic number.

72689223 is a deficient number, since it is larger than the sum of its proper divisors (28443705).

72689223 is a wasteful number, since it uses less digits than its factorization.

72689223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053493.

The product of its digits is 72576, while the sum is 39.

The square root of 72689223 is about 8525.7974993545. The cubic root of 72689223 is about 417.3399972539.

The spelling of 72689223 in words is "seventy-two million, six hundred eighty-nine thousand, two hundred twenty-three".