89865243 has 18 divisors (see below), whose sum is σ = 140560836. Its totient is φ = 55300752.

The previous prime is 89865221. The next prime is 89865257. The reversal of 89865243 is 34256898.

It is not a de Polignac number, because 89865243 - 2¹² = 89861147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89865283) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28021 + ... + 31062.

Almost surely, 2^89865243 is an apocalyptic number.

89865243 is a deficient number, since it is larger than the sum of its proper divisors (50695593).

89865243 is a wasteful number, since it uses less digits than its factorization.

89865243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59115 (or 59099 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 89865243 is about 9479.7280024271. The cubic root of 89865243 is about 447.9166960197.

The spelling of 89865243 in words is "eighty-nine million, eight hundred sixty-five thousand, two hundred forty-three".