89601791 has 2 divisors, whose sum is σ = 89601792. Its totient is φ = 89601790.

The previous prime is 89601751. The next prime is 89601797. The reversal of 89601791 is 19710698.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89601791 - 2⁶ = 89601727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89601797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44800895 + 44800896.

It is an arithmetic number, because the mean of its divisors is an integer number (44800896).

Almost surely, 2^89601791 is an apocalyptic number.

89601791 is a deficient number, since it is larger than the sum of its proper divisors (1).

89601791 is an equidigital number, since it uses as much as digits as its factorization.

89601791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 89601791 is about 9465.8222569410. The cubic root of 89601791 is about 447.4785583185.

The spelling of 89601791 in words is "eighty-nine million, six hundred one thousand, seven hundred ninety-one".