47959447 has 2 divisors, whose sum is σ = 47959448. Its totient is φ = 47959446.

The previous prime is 47959427. The next prime is 47959451. The reversal of 47959447 is 74495974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47959447 - 2¹⁵ = 47926679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47959447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47959427) 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, 23979723 + 23979724.

It is an arithmetic number, because the mean of its divisors is an integer number (23979724).

Almost surely, 2^47959447 is an apocalyptic number.

47959447 is a deficient number, since it is larger than the sum of its proper divisors (1).

47959447 is an equidigital number, since it uses as much as digits as its factorization.

47959447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 47959447 is about 6925.2759511806. The cubic root of 47959447 is about 363.3217429366.

The spelling of 47959447 in words is "forty-seven million, nine hundred fifty-nine thousand, four hundred forty-seven".