89589749 has 2 divisors, whose sum is σ = 89589750. Its totient is φ = 89589748.

The previous prime is 89589743. The next prime is 89589763. The reversal of 89589749 is 94798598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70728100 + 18861649 = 8410^2 + 4343^2 .

It is a cyclic number.

It is not a de Polignac number, because 89589749 - 2⁴ = 89589733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89589743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44794874 + 44794875.

It is an arithmetic number, because the mean of its divisors is an integer number (44794875).

Almost surely, 2^89589749 is an apocalyptic number.

It is an amenable number.

89589749 is a deficient number, since it is larger than the sum of its proper divisors (1).

89589749 is an equidigital number, since it uses as much as digits as its factorization.

89589749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 59.

The square root of 89589749 is about 9465.1861577045. The cubic root of 89589749 is about 447.4585111812.

The spelling of 89589749 in words is "eighty-nine million, five hundred eighty-nine thousand, seven hundred forty-nine".