89339279 has 2 divisors, whose sum is σ = 89339280. Its totient is φ = 89339278.

The previous prime is 89339221. The next prime is 89339281. The reversal of 89339279 is 97293398.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89339279 is a prime.

Together with 89339281, 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 (89339209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44669639 + 44669640.

It is an arithmetic number, because the mean of its divisors is an integer number (44669640).

Almost surely, 2^89339279 is an apocalyptic number.

89339279 is a deficient number, since it is larger than the sum of its proper divisors (1).

89339279 is an equidigital number, since it uses as much as digits as its factorization.

89339279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 89339279 is about 9451.9457785157. The cubic root of 89339279 is about 447.0411288306.

The spelling of 89339279 in words is "eighty-nine million, three hundred thirty-nine thousand, two hundred seventy-nine".