89131423 has 2 divisors, whose sum is σ = 89131424. Its totient is φ = 89131422.

The previous prime is 89131421. The next prime is 89131429. The reversal of 89131423 is 32413198.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89131423 - 2¹ = 89131421 is a prime.

Together with 89131421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89131421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44565711 + 44565712.

It is an arithmetic number, because the mean of its divisors is an integer number (44565712).

Almost surely, 2^89131423 is an apocalyptic number.

89131423 is a deficient number, since it is larger than the sum of its proper divisors (1).

89131423 is an equidigital number, since it uses as much as digits as its factorization.

89131423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 89131423 is about 9440.9439676337. The cubic root of 89131423 is about 446.6941655925.

The spelling of 89131423 in words is "eighty-nine million, one hundred thirty-one thousand, four hundred twenty-three".