89722571 has 2 divisors, whose sum is σ = 89722572. Its totient is φ = 89722570.

The previous prime is 89722561. The next prime is 89722597. The reversal of 89722571 is 17522798.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89722571 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89722511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44861285 + 44861286.

It is an arithmetic number, because the mean of its divisors is an integer number (44861286).

Almost surely, 2^89722571 is an apocalyptic number.

89722571 is a deficient number, since it is larger than the sum of its proper divisors (1).

89722571 is an equidigital number, since it uses as much as digits as its factorization.

89722571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 89722571 is about 9472.1999028737. The cubic root of 89722571 is about 447.6795297262.

The spelling of 89722571 in words is "eighty-nine million, seven hundred twenty-two thousand, five hundred seventy-one".