47856719 has 2 divisors, whose sum is σ = 47856720. Its totient is φ = 47856718.

The previous prime is 47856701. The next prime is 47856733. The reversal of 47856719 is 91765874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47856719 is a prime.

It is a super-2 number, since 2×47856719² = 4580531106889922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47856779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23928359 + 23928360.

It is an arithmetic number, because the mean of its divisors is an integer number (23928360).

Almost surely, 2^47856719 is an apocalyptic number.

47856719 is a deficient number, since it is larger than the sum of its proper divisors (1).

47856719 is an equidigital number, since it uses as much as digits as its factorization.

47856719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 47.

The square root of 47856719 is about 6917.8550866580. The cubic root of 47856719 is about 363.0621486428.

The spelling of 47856719 in words is "forty-seven million, eight hundred fifty-six thousand, seven hundred nineteen".