89243381 has 4 divisors (see below), whose sum is σ = 93123552. Its totient is φ = 85363212.

The previous prime is 89243369. The next prime is 89243383. The reversal of 89243381 is 18334298.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 89243381 - 2²² = 85049077 is a prime.

It is a super-2 number, since 2×89243381² = 15928762104622322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89243383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940051 + ... + 1940096.

It is an arithmetic number, because the mean of its divisors is an integer number (23280888).

Almost surely, 2^89243381 is an apocalyptic number.

It is an amenable number.

89243381 is a deficient number, since it is larger than the sum of its proper divisors (3880171).

89243381 is a wasteful number, since it uses less digits than its factorization.

89243381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880170.

The product of its digits is 41472, while the sum is 38.

The square root of 89243381 is about 9446.8714927218. The cubic root of 89243381 is about 446.8811182170.

The spelling of 89243381 in words is "eighty-nine million, two hundred forty-three thousand, three hundred eighty-one".