89432279 has 2 divisors, whose sum is σ = 89432280. Its totient is φ = 89432278.

The previous prime is 89432263. The next prime is 89432311. The reversal of 89432279 is 97223498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89432279 - 2⁴ = 89432263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89432209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44716139 + 44716140.

It is an arithmetic number, because the mean of its divisors is an integer number (44716140).

Almost surely, 2^89432279 is an apocalyptic number.

89432279 is a deficient number, since it is larger than the sum of its proper divisors (1).

89432279 is an equidigital number, since it uses as much as digits as its factorization.

89432279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 89432279 is about 9456.8641208384. The cubic root of 89432279 is about 447.1961946563.

The spelling of 89432279 in words is "eighty-nine million, four hundred thirty-two thousand, two hundred seventy-nine".