89434823 has 2 divisors, whose sum is σ = 89434824. Its totient is φ = 89434822.

The previous prime is 89434801. The next prime is 89434831. The reversal of 89434823 is 32843498.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89434823 - 2⁶ = 89434759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89434853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44717411 + 44717412.

It is an arithmetic number, because the mean of its divisors is an integer number (44717412).

Almost surely, 2^89434823 is an apocalyptic number.

89434823 is a deficient number, since it is larger than the sum of its proper divisors (1).

89434823 is an equidigital number, since it uses as much as digits as its factorization.

89434823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 41.

The square root of 89434823 is about 9456.9986253568. The cubic root of 89434823 is about 447.2004349460.

The spelling of 89434823 in words is "eighty-nine million, four hundred thirty-four thousand, eight hundred twenty-three".