47903171 has 2 divisors, whose sum is σ = 47903172. Its totient is φ = 47903170.

The previous prime is 47903147. The next prime is 47903173. The reversal of 47903171 is 17130974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47903171 - 2¹⁰ = 47902147 is a prime.

Together with 47903173, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2882723 and since 47903171 and 2882723 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47903173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23951585 + 23951586.

It is an arithmetic number, because the mean of its divisors is an integer number (23951586).

Almost surely, 2^47903171 is an apocalyptic number.

47903171 is a deficient number, since it is larger than the sum of its proper divisors (1).

47903171 is an equidigital number, since it uses as much as digits as its factorization.

47903171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 47903171 is about 6921.2116713766. The cubic root of 47903171 is about 363.1795791004.

The spelling of 47903171 in words is "forty-seven million, nine hundred three thousand, one hundred seventy-one".