89242609 has 6 divisors (see below), whose sum is σ = 91474070. Its totient is φ = 87064320.

The previous prime is 89242607. The next prime is 89242667. The reversal of 89242609 is 90624298.

It can be written as a sum of positive squares in 3 ways, for example, as 15626209 + 73616400 = 3953^2 + 8580^2 .

It is not a de Polignac number, because 89242609 - 2¹ = 89242607 is a prime.

It is a super-2 number, since 2×89242609² = 15928486522253762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89242603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24864 + ... + 28225.

Almost surely, 2^89242609 is an apocalyptic number.

It is an amenable number.

89242609 is a deficient number, since it is larger than the sum of its proper divisors (2231461).

89242609 is an equidigital number, since it uses as much as digits as its factorization.

89242609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53171 (or 53130 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 89242609 is about 9446.8306325455. The cubic root of 89242609 is about 446.8798296314.

The spelling of 89242609 in words is "eighty-nine million, two hundred forty-two thousand, six hundred nine".