89538191 has 2 divisors, whose sum is σ = 89538192. Its totient is φ = 89538190.

The previous prime is 89538161. The next prime is 89538193. The reversal of 89538191 is 19183598.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89538191 - 2¹⁰ = 89537167 is a prime.

Together with 89538193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89538193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44769095 + 44769096.

It is an arithmetic number, because the mean of its divisors is an integer number (44769096).

Almost surely, 2^89538191 is an apocalyptic number.

89538191 is a deficient number, since it is larger than the sum of its proper divisors (1).

89538191 is an equidigital number, since it uses as much as digits as its factorization.

89538191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 44.

The square root of 89538191 is about 9462.4622060011. The cubic root of 89538191 is about 447.3726587516.

The spelling of 89538191 in words is "eighty-nine million, five hundred thirty-eight thousand, one hundred ninety-one".