47394719 has 2 divisors, whose sum is σ = 47394720. Its totient is φ = 47394718.

The previous prime is 47394703. The next prime is 47394733. The reversal of 47394719 is 91749374.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47394719 - 2⁴ = 47394703 is a prime.

It is a super-2 number, since 2×47394719² = 4492518778177922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47394719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47394769) 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, 23697359 + 23697360.

It is an arithmetic number, because the mean of its divisors is an integer number (23697360).

Almost surely, 2^47394719 is an apocalyptic number.

47394719 is a deficient number, since it is larger than the sum of its proper divisors (1).

47394719 is an equidigital number, since it uses as much as digits as its factorization.

47394719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 47394719 is about 6884.3822526063. The cubic root of 47394719 is about 361.8900569639.

The spelling of 47394719 in words is "forty-seven million, three hundred ninety-four thousand, seven hundred nineteen".