89015749 has 2 divisors, whose sum is σ = 89015750. Its totient is φ = 89015748.

The previous prime is 89015687. The next prime is 89015803. The reversal of 89015749 is 94751098.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85840225 + 3175524 = 9265^2 + 1782^2 .

It is a cyclic number.

It is not a de Polignac number, because 89015749 - 2⁹ = 89015237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89015449) 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, 44507874 + 44507875.

It is an arithmetic number, because the mean of its divisors is an integer number (44507875).

Almost surely, 2^89015749 is an apocalyptic number.

It is an amenable number.

89015749 is a deficient number, since it is larger than the sum of its proper divisors (1).

89015749 is an equidigital number, since it uses as much as digits as its factorization.

89015749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 89015749 is about 9434.8157904646. The cubic root of 89015749 is about 446.5008433125.

The spelling of 89015749 in words is "eighty-nine million, fifteen thousand, seven hundred forty-nine".