94879639 has 2 divisors, whose sum is σ = 94879640. Its totient is φ = 94879638.

The previous prime is 94879591. The next prime is 94879679. The reversal of 94879639 is 93697849.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 94879639 - 2²⁵ = 61325207 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 94879639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94879679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47439819 + 47439820.

It is an arithmetic number, because the mean of its divisors is an integer number (47439820).

Almost surely, 2^94879639 is an apocalyptic number.

94879639 is a deficient number, since it is larger than the sum of its proper divisors (1).

94879639 is an equidigital number, since it uses as much as digits as its factorization.

94879639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 55.

The square root of 94879639 is about 9740.6179988746. The cubic root of 94879639 is about 456.0974819165.

The spelling of 94879639 in words is "ninety-four million, eight hundred seventy-nine thousand, six hundred thirty-nine".