89479079 has 2 divisors, whose sum is σ = 89479080. Its totient is φ = 89479078.

The previous prime is 89479073. The next prime is 89479121. The reversal of 89479079 is 97097498.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89479079 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89479079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89479073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44739539 + 44739540.

It is an arithmetic number, because the mean of its divisors is an integer number (44739540).

Almost surely, 2^89479079 is an apocalyptic number.

89479079 is a deficient number, since it is larger than the sum of its proper divisors (1).

89479079 is an equidigital number, since it uses as much as digits as its factorization.

89479079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 89479079 is about 9459.3381903810. The cubic root of 89479079 is about 447.2741871236.

The spelling of 89479079 in words is "eighty-nine million, four hundred seventy-nine thousand, seventy-nine".