89511589 has 2 divisors, whose sum is σ = 89511590. Its totient is φ = 89511588.

The previous prime is 89511551. The next prime is 89511619. The reversal of 89511589 is 98511598.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81993025 + 7518564 = 9055^2 + 2742^2 .

It is a cyclic number.

It is not a de Polignac number, because 89511589 - 2¹³ = 89503397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89511529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44755794 + 44755795.

It is an arithmetic number, because the mean of its divisors is an integer number (44755795).

Almost surely, 2^89511589 is an apocalyptic number.

It is an amenable number.

89511589 is a deficient number, since it is larger than the sum of its proper divisors (1).

89511589 is an equidigital number, since it uses as much as digits as its factorization.

89511589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 46.

The square root of 89511589 is about 9461.0564420682. The cubic root of 89511589 is about 447.3283492186.

Subtracting 89511589 from its reverse (98511598), we obtain a palindrome (9000009).

It can be divided in two parts, 89511 and 589, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 89511589 in words is "eighty-nine million, five hundred eleven thousand, five hundred eighty-nine".