89449571 has 2 divisors, whose sum is σ = 89449572. Its totient is φ = 89449570.

The previous prime is 89449561. The next prime is 89449579. The reversal of 89449571 is 17594498.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89449571 is a prime.

It is not a weakly prime, because it can be changed into another prime (89449579) 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, 44724785 + 44724786.

It is an arithmetic number, because the mean of its divisors is an integer number (44724786).

Almost surely, 2^89449571 is an apocalyptic number.

89449571 is a deficient number, since it is larger than the sum of its proper divisors (1).

89449571 is an equidigital number, since it uses as much as digits as its factorization.

89449571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 89449571 is about 9457.7783332028. The cubic root of 89449571 is about 447.2250150417.

The spelling of 89449571 in words is "eighty-nine million, four hundred forty-nine thousand, five hundred seventy-one".