72288223 has 8 divisors (see below), whose sum is σ = 83094048. Its totient is φ = 61602144.

The previous prime is 72288221. The next prime is 72288253. The reversal of 72288223 is 32288227.

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 72288223 - 2¹ = 72288221 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 (72288221) 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, 28636 + ... + 31057.

It is an arithmetic number, because the mean of its divisors is an integer number (10386756).

Almost surely, 2^72288223 is an apocalyptic number.

72288223 is a deficient number, since it is larger than the sum of its proper divisors (10805825).

72288223 is a wasteful number, since it uses less digits than its factorization.

72288223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59873.

The product of its digits is 21504, while the sum is 34.

The square root of 72288223 is about 8502.2481144695. The cubic root of 72288223 is about 416.5711440405.

It can be divided in two parts, 7228 and 8223, that added together give a palindrome (15451).

The spelling of 72288223 in words is "seventy-two million, two hundred eighty-eight thousand, two hundred twenty-three".