72855333 has 12 divisors (see below), whose sum is σ = 105337440. Its totient is φ = 48523176.

The previous prime is 72855271. The next prime is 72855359. The reversal of 72855333 is 33355827.

72855333 is a `hidden beast` number, since 72 + 8 + 553 + 33 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-72855333 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72850333) 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, 7698 + ... + 14316.

It is an arithmetic number, because the mean of its divisors is an integer number (8778120).

Almost surely, 2^72855333 is an apocalyptic number.

It is an amenable number.

72855333 is a deficient number, since it is larger than the sum of its proper divisors (32482107).

72855333 is a wasteful number, since it uses less digits than its factorization.

72855333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7848 (or 7845 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 72855333 is about 8535.5335509856. The cubic root of 72855333 is about 417.6576583145.

The spelling of 72855333 in words is "seventy-two million, eight hundred fifty-five thousand, three hundred thirty-three".