89023609 has 2 divisors, whose sum is σ = 89023610. Its totient is φ = 89023608.

The previous prime is 89023601. The next prime is 89023633. The reversal of 89023609 is 90632098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76947984 + 12075625 = 8772^2 + 3475^2 .

It is a cyclic number.

It is not a de Polignac number, because 89023609 - 2³ = 89023601 is a prime.

It is not a weakly prime, because it can be changed into another prime (89023601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44511804 + 44511805.

It is an arithmetic number, because the mean of its divisors is an integer number (44511805).

Almost surely, 2^89023609 is an apocalyptic number.

It is an amenable number.

89023609 is a deficient number, since it is larger than the sum of its proper divisors (1).

89023609 is an equidigital number, since it uses as much as digits as its factorization.

89023609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 89023609 is about 9435.2323235838. The cubic root of 89023609 is about 446.5139847824.

The spelling of 89023609 in words is "eighty-nine million, twenty-three thousand, six hundred nine".