89234879 has 2 divisors, whose sum is σ = 89234880. Its totient is φ = 89234878.

The previous prime is 89234869. The next prime is 89234891. The reversal of 89234879 is 97843298.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89234879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89234869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44617439 + 44617440.

It is an arithmetic number, because the mean of its divisors is an integer number (44617440).

Almost surely, 2^89234879 is an apocalyptic number.

89234879 is a deficient number, since it is larger than the sum of its proper divisors (1).

89234879 is an equidigital number, since it uses as much as digits as its factorization.

89234879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 89234879 is about 9446.4214917608. The cubic root of 89234879 is about 446.8669266737.

The spelling of 89234879 in words is "eighty-nine million, two hundred thirty-four thousand, eight hundred seventy-nine".