72887223 has 16 divisors (see below), whose sum is σ = 99584640. Its totient is φ = 47404896.

The previous prime is 72887183. The next prime is 72887239. The reversal of 72887223 is 32278827.

It is not a de Polignac number, because 72887223 - 2⁹ = 72886711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72887123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19813 + ... + 23201.

It is an arithmetic number, because the mean of its divisors is an integer number (6224040).

Almost surely, 2^72887223 is an apocalyptic number.

72887223 is a deficient number, since it is larger than the sum of its proper divisors (26697417).

72887223 is a wasteful number, since it uses less digits than its factorization.

72887223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566.

The product of its digits is 75264, while the sum is 39.

The square root of 72887223 is about 8537.4014196358. The cubic root of 72887223 is about 417.7185880105.

The spelling of 72887223 in words is "seventy-two million, eight hundred eighty-seven thousand, two hundred twenty-three".