72868333 has 2 divisors, whose sum is σ = 72868334. Its totient is φ = 72868332.

The previous prime is 72868319. The next prime is 72868337. The reversal of 72868333 is 33386827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54361129 + 18507204 = 7373^2 + 4302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72868333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72868337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36434166 + 36434167.

It is an arithmetic number, because the mean of its divisors is an integer number (36434167).

Almost surely, 2^72868333 is an apocalyptic number.

It is an amenable number.

72868333 is a deficient number, since it is larger than the sum of its proper divisors (1).

72868333 is an equidigital number, since it uses as much as digits as its factorization.

72868333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 72868333 is about 8536.2950394184. The cubic root of 72868333 is about 417.6824985306.

The spelling of 72868333 in words is "seventy-two million, eight hundred sixty-eight thousand, three hundred thirty-three".