72672223 has 8 divisors (see below), whose sum is σ = 78782816. Its totient is φ = 66636000.

The previous prime is 72672209. The next prime is 72672241. The reversal of 72672223 is 32227627.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72672223 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 (72676223) 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, 16548 + ... + 20473.

It is an arithmetic number, because the mean of its divisors is an integer number (9847852).

Almost surely, 2^72672223 is an apocalyptic number.

72672223 is a deficient number, since it is larger than the sum of its proper divisors (6110593).

72672223 is a wasteful number, since it uses less digits than its factorization.

72672223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37185.

The product of its digits is 14112, while the sum is 31.

The square root of 72672223 is about 8524.8004668731. The cubic root of 72672223 is about 417.3074599541.

The spelling of 72672223 in words is "seventy-two million, six hundred seventy-two thousand, two hundred twenty-three".