89047879 has 2 divisors, whose sum is σ = 89047880. Its totient is φ = 89047878.

The previous prime is 89047831. The next prime is 89047943. The reversal of 89047879 is 97874098.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89047879 - 2²¹ = 86950727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89047379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44523939 + 44523940.

It is an arithmetic number, because the mean of its divisors is an integer number (44523940).

Almost surely, 2^89047879 is an apocalyptic number.

89047879 is a deficient number, since it is larger than the sum of its proper divisors (1).

89047879 is an equidigital number, since it uses as much as digits as its factorization.

89047879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 89047879 is about 9436.5183727898. The cubic root of 89047879 is about 446.5545579512.

The spelling of 89047879 in words is "eighty-nine million, forty-seven thousand, eight hundred seventy-nine".