72599233 has 12 divisors (see below), whose sum is σ = 86514372. Its totient is φ = 60708480.

The previous prime is 72599221. The next prime is 72599237. The reversal of 72599233 is 33299527.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20007729 + 52591504 = 4473^2 + 7252^2 .

It is a de Polignac number, because none of the positive numbers 2^k-72599233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72599237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16060 + ... + 20077.

It is an arithmetic number, because the mean of its divisors is an integer number (7209531).

Almost surely, 2^72599233 is an apocalyptic number.

It is an amenable number.

72599233 is a deficient number, since it is larger than the sum of its proper divisors (13915139).

72599233 is a wasteful number, since it uses less digits than its factorization.

72599233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36192 (or 36185 counting only the distinct ones).

The product of its digits is 102060, while the sum is 40.

The square root of 72599233 is about 8520.5183527764. The cubic root of 72599233 is about 417.1677024079.

The spelling of 72599233 in words is "seventy-two million, five hundred ninety-nine thousand, two hundred thirty-three".