47918719 has 2 divisors, whose sum is σ = 47918720. Its totient is φ = 47918718.

The previous prime is 47918711. The next prime is 47918723. The reversal of 47918719 is 91781974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47918719 - 2³ = 47918711 is a prime.

It is a super-2 number, since 2×47918719² = 4592407261201922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47918711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23959359 + 23959360.

It is an arithmetic number, because the mean of its divisors is an integer number (23959360).

Almost surely, 2^47918719 is an apocalyptic number.

47918719 is a deficient number, since it is larger than the sum of its proper divisors (1).

47918719 is an equidigital number, since it uses as much as digits as its factorization.

47918719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 46.

The square root of 47918719 is about 6922.3347939839. The cubic root of 47918719 is about 363.2188674200.

The spelling of 47918719 in words is "forty-seven million, nine hundred eighteen thousand, seven hundred nineteen".