72759959 has 2 divisors, whose sum is σ = 72759960. Its totient is φ = 72759958.

The previous prime is 72759919. The next prime is 72759989. The reversal of 72759959 is 95995727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72759959 - 2¹² = 72755863 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72759959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72759919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36379979 + 36379980.

It is an arithmetic number, because the mean of its divisors is an integer number (36379980).

Almost surely, 2^72759959 is an apocalyptic number.

72759959 is a deficient number, since it is larger than the sum of its proper divisors (1).

72759959 is an equidigital number, since it uses as much as digits as its factorization.

72759959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1786050, while the sum is 53.

The square root of 72759959 is about 8529.9448415567. The cubic root of 72759959 is about 417.4753286006.

The spelling of 72759959 in words is "seventy-two million, seven hundred fifty-nine thousand, nine hundred fifty-nine".