89489089 has 2 divisors, whose sum is σ = 89489090. Its totient is φ = 89489088.

The previous prime is 89489053. The next prime is 89489123. The reversal of 89489089 is 98098498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55651600 + 33837489 = 7460^2 + 5817^2 .

It is a cyclic number.

It is not a de Polignac number, because 89489089 - 2¹⁹ = 88964801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89484089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44744544 + 44744545.

It is an arithmetic number, because the mean of its divisors is an integer number (44744545).

Almost surely, 2^89489089 is an apocalyptic number.

It is an amenable number.

89489089 is a deficient number, since it is larger than the sum of its proper divisors (1).

89489089 is an equidigital number, since it uses as much as digits as its factorization.

89489089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The square root of 89489089 is about 9459.8672823671. The cubic root of 89489089 is about 447.2908653151.

The spelling of 89489089 in words is "eighty-nine million, four hundred eighty-nine thousand, eighty-nine".