47979179 has 2 divisors, whose sum is σ = 47979180. Its totient is φ = 47979178.

The previous prime is 47979157. The next prime is 47979187. The reversal of 47979179 is 97197974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47979179 - 2⁸ = 47978923 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 47979179.

It is not a weakly prime, because it can be changed into another prime (47979779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23989589 + 23989590.

It is an arithmetic number, because the mean of its divisors is an integer number (23989590).

Almost surely, 2^47979179 is an apocalyptic number.

47979179 is a deficient number, since it is larger than the sum of its proper divisors (1).

47979179 is an equidigital number, since it uses as much as digits as its factorization.

47979179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1000188, while the sum is 53.

The square root of 47979179 is about 6926.7004410469. The cubic root of 47979179 is about 363.3715633725.

The spelling of 47979179 in words is "forty-seven million, nine hundred seventy-nine thousand, one hundred seventy-nine".