72795571 has 2 divisors, whose sum is σ = 72795572. Its totient is φ = 72795570.

The previous prime is 72795523. The next prime is 72795587. The reversal of 72795571 is 17559727.

It is a strong prime.

It is an emirp because it is prime and its reverse (17559727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72795571 - 2⁹ = 72795059 is a prime.

It is not a weakly prime, because it can be changed into another prime (72792571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36397785 + 36397786.

It is an arithmetic number, because the mean of its divisors is an integer number (36397786).

Almost surely, 2^72795571 is an apocalyptic number.

72795571 is a deficient number, since it is larger than the sum of its proper divisors (1).

72795571 is an equidigital number, since it uses as much as digits as its factorization.

72795571 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 72795571 is about 8532.0320557297. The cubic root of 72795571 is about 417.5434278991.

The spelling of 72795571 in words is "seventy-two million, seven hundred ninety-five thousand, five hundred seventy-one".