89575691 has 2 divisors, whose sum is σ = 89575692. Its totient is φ = 89575690.

The previous prime is 89575663. The next prime is 89575699. The reversal of 89575691 is 19657598.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89575691 is a prime.

It is not a weakly prime, because it can be changed into another prime (89575699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44787845 + 44787846.

It is an arithmetic number, because the mean of its divisors is an integer number (44787846).

Almost surely, 2^89575691 is an apocalyptic number.

89575691 is a deficient number, since it is larger than the sum of its proper divisors (1).

89575691 is an equidigital number, since it uses as much as digits as its factorization.

89575691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 50.

The square root of 89575691 is about 9464.4435124311. The cubic root of 89575691 is about 447.4351055987.

The spelling of 89575691 in words is "eighty-nine million, five hundred seventy-five thousand, six hundred ninety-one".