89489423 has 2 divisors, whose sum is σ = 89489424. Its totient is φ = 89489422.

The previous prime is 89489399. The next prime is 89489431. The reversal of 89489423 is 32498498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89489423 - 2¹² = 89485327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89489443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44744711 + 44744712.

It is an arithmetic number, because the mean of its divisors is an integer number (44744712).

Almost surely, 2^89489423 is an apocalyptic number.

89489423 is a deficient number, since it is larger than the sum of its proper divisors (1).

89489423 is an equidigital number, since it uses as much as digits as its factorization.

89489423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 47.

The square root of 89489423 is about 9459.8849358753. The cubic root of 89489423 is about 447.2914217888.

The spelling of 89489423 in words is "eighty-nine million, four hundred eighty-nine thousand, four hundred twenty-three".