47180879 has 2 divisors, whose sum is σ = 47180880. Its totient is φ = 47180878.

The previous prime is 47180867. The next prime is 47180893. The reversal of 47180879 is 97808174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47180879 - 2⁴ = 47180863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47180479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23590439 + 23590440.

It is an arithmetic number, because the mean of its divisors is an integer number (23590440).

Almost surely, 2^47180879 is an apocalyptic number.

47180879 is a deficient number, since it is larger than the sum of its proper divisors (1).

47180879 is an equidigital number, since it uses as much as digits as its factorization.

47180879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 47180879 is about 6868.8338893876. The cubic root of 47180879 is about 361.3449663524.

The spelling of 47180879 in words is "forty-seven million, one hundred eighty thousand, eight hundred seventy-nine".