89444231 has 4 divisors (see below), whose sum is σ = 91131912. Its totient is φ = 87756552.

The previous prime is 89444221. The next prime is 89444291. The reversal of 89444231 is 13244498.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 89444231 - 2¹⁸ = 89182087 is a prime.

It is a super-2 number, since 2×89444231² = 16000540918362722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89444191 and 89444200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89444221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843761 + ... + 843866.

It is an arithmetic number, because the mean of its divisors is an integer number (22782978).

Almost surely, 2^89444231 is an apocalyptic number.

89444231 is a deficient number, since it is larger than the sum of its proper divisors (1687681).

89444231 is a wasteful number, since it uses less digits than its factorization.

89444231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687680.

The product of its digits is 27648, while the sum is 35.

The square root of 89444231 is about 9457.4960216751. The cubic root of 89444231 is about 447.2161153191.

The spelling of 89444231 in words is "eighty-nine million, four hundred forty-four thousand, two hundred thirty-one".