72233399 has 16 divisors (see below), whose sum is σ = 84744000. Its totient is φ = 61542432.

The previous prime is 72233393. The next prime is 72233401. The reversal of 72233399 is 99333227.

It is a de Polignac number, because none of the positive numbers 2^k-72233399 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 (72233393) 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, 67037 + ... + 68105.

It is an arithmetic number, because the mean of its divisors is an integer number (5296500).

Almost surely, 2^72233399 is an apocalyptic number.

72233399 is a deficient number, since it is larger than the sum of its proper divisors (12510601).

72233399 is a wasteful number, since it uses less digits than its factorization.

72233399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1273 counting only the distinct ones).

The product of its digits is 61236, while the sum is 38.

The square root of 72233399 is about 8499.0234144871. The cubic root of 72233399 is about 416.4658070463.

The spelling of 72233399 in words is "seventy-two million, two hundred thirty-three thousand, three hundred ninety-nine".