89630289 has 48 divisors (see below), whose sum is σ = 152740224. Its totient is φ = 49593600.

The previous prime is 89630279. The next prime is 89630309. The reversal of 89630289 is 98203698.

89630289 is a `hidden beast` number, since 8 + 9 + 630 + 2 + 8 + 9 = 666.

It is not a de Polignac number, because 89630289 - 2⁸ = 89630033 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89630279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318829 + ... + 319109.

It is an arithmetic number, because the mean of its divisors is an integer number (3182088).

Almost surely, 2^89630289 is an apocalyptic number.

It is an amenable number.

89630289 is a deficient number, since it is larger than the sum of its proper divisors (63109935).

89630289 is a wasteful number, since it uses less digits than its factorization.

89630289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 89630289 is about 9467.3274475958. The cubic root of 89630289 is about 447.5259937254.

The spelling of 89630289 in words is "eighty-nine million, six hundred thirty thousand, two hundred eighty-nine".