89759689 has 2 divisors, whose sum is σ = 89759690. Its totient is φ = 89759688.

The previous prime is 89759641. The next prime is 89759713. The reversal of 89759689 is 98695798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88209664 + 1550025 = 9392^2 + 1245^2 .

It is a cyclic number.

It is not a de Polignac number, because 89759689 - 2⁷ = 89759561 is a prime.

It is not a weakly prime, because it can be changed into another prime (89759489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44879844 + 44879845.

It is an arithmetic number, because the mean of its divisors is an integer number (44879845).

Almost surely, 2^89759689 is an apocalyptic number.

It is an amenable number.

89759689 is a deficient number, since it is larger than the sum of its proper divisors (1).

89759689 is an equidigital number, since it uses as much as digits as its factorization.

89759689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 61.

The square root of 89759689 is about 9474.1590128095. The cubic root of 89759689 is about 447.7412558436.

The spelling of 89759689 in words is "eighty-nine million, seven hundred fifty-nine thousand, six hundred eighty-nine".