72754733 has 2 divisors, whose sum is σ = 72754734. Its totient is φ = 72754732.

The previous prime is 72754621. The next prime is 72754739. The reversal of 72754733 is 33745727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49589764 + 23164969 = 7042^2 + 4813^2 .

It is a cyclic number.

It is not a de Polignac number, because 72754733 - 2¹² = 72750637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72754739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36377366 + 36377367.

It is an arithmetic number, because the mean of its divisors is an integer number (36377367).

Almost surely, 2^72754733 is an apocalyptic number.

It is an amenable number.

72754733 is a deficient number, since it is larger than the sum of its proper divisors (1).

72754733 is an equidigital number, since it uses as much as digits as its factorization.

72754733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 38.

The square root of 72754733 is about 8529.6385034772. The cubic root of 72754733 is about 417.4653332756.

The spelling of 72754733 in words is "seventy-two million, seven hundred fifty-four thousand, seven hundred thirty-three".