89911529 has 2 divisors, whose sum is σ = 89911530. Its totient is φ = 89911528.

The previous prime is 89911511. The next prime is 89911537. The reversal of 89911529 is 92511998.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63234304 + 26677225 = 7952^2 + 5165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89911529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89911529.

It is not a weakly prime, because it can be changed into another prime (89911579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44955764 + 44955765.

It is an arithmetic number, because the mean of its divisors is an integer number (44955765).

Almost surely, 2^89911529 is an apocalyptic number.

It is an amenable number.

89911529 is a deficient number, since it is larger than the sum of its proper divisors (1).

89911529 is an equidigital number, since it uses as much as digits as its factorization.

89911529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 44.

The square root of 89911529 is about 9482.1690029233. The cubic root of 89911529 is about 447.9935841582.

The spelling of 89911529 in words is "eighty-nine million, nine hundred eleven thousand, five hundred twenty-nine".