47797879 has 2 divisors, whose sum is σ = 47797880. Its totient is φ = 47797878.

The previous prime is 47797861. The next prime is 47797889. The reversal of 47797879 is 97879774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47797879 - 2²⁵ = 14243447 is a prime.

It is a super-3 number, since 3×47797879³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47797889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23898939 + 23898940.

It is an arithmetic number, because the mean of its divisors is an integer number (23898940).

Almost surely, 2^47797879 is an apocalyptic number.

47797879 is a deficient number, since it is larger than the sum of its proper divisors (1).

47797879 is an equidigital number, since it uses as much as digits as its factorization.

47797879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6223392, while the sum is 58.

The square root of 47797879 is about 6913.6010153899. The cubic root of 47797879 is about 362.9132922344.

The spelling of 47797879 in words is "forty-seven million, seven hundred ninety-seven thousand, eight hundred seventy-nine".