72759751 has 2 divisors, whose sum is σ = 72759752. Its totient is φ = 72759750.

The previous prime is 72759733. The next prime is 72759767. The reversal of 72759751 is 15795727.

It is a strong prime.

It is an emirp because it is prime and its reverse (15795727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72759751 - 2⁵ = 72759719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72759698 and 72759707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72759781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36379875 + 36379876.

It is an arithmetic number, because the mean of its divisors is an integer number (36379876).

Almost surely, 2^72759751 is an apocalyptic number.

72759751 is a deficient number, since it is larger than the sum of its proper divisors (1).

72759751 is an equidigital number, since it uses as much as digits as its factorization.

72759751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 154350, while the sum is 43.

The square root of 72759751 is about 8529.9326492066. The cubic root of 72759751 is about 417.4749307858.

The spelling of 72759751 in words is "seventy-two million, seven hundred fifty-nine thousand, seven hundred fifty-one".