89654489 has 2 divisors, whose sum is σ = 89654490. Its totient is φ = 89654488.

The previous prime is 89654479. The next prime is 89654491. The reversal of 89654489 is 98445698.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77299264 + 12355225 = 8792^2 + 3515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89654489 is a prime.

It is a super-2 number, since 2×89654489² = 16075854795702242, which contains 22 as substring.

Together with 89654491, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89654489.

It is not a weakly prime, because it can be changed into another prime (89654479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44827244 + 44827245.

It is an arithmetic number, because the mean of its divisors is an integer number (44827245).

Almost surely, 2^89654489 is an apocalyptic number.

It is an amenable number.

89654489 is a deficient number, since it is larger than the sum of its proper divisors (1).

89654489 is an equidigital number, since it uses as much as digits as its factorization.

89654489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 53.

The square root of 89654489 is about 9468.6054411407. The cubic root of 89654489 is about 447.5662671441.

The spelling of 89654489 in words is "eighty-nine million, six hundred fifty-four thousand, four hundred eighty-nine".