47945459 has 2 divisors, whose sum is σ = 47945460. Its totient is φ = 47945458.

The previous prime is 47945453. The next prime is 47945461. The reversal of 47945459 is 95454974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47945459 - 2⁸ = 47945203 is a prime.

It is a Sophie Germain prime.

Together with 47945461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47945453) 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, 23972729 + 23972730.

It is an arithmetic number, because the mean of its divisors is an integer number (23972730).

Almost surely, 2^47945459 is an apocalyptic number.

47945459 is a deficient number, since it is larger than the sum of its proper divisors (1).

47945459 is an equidigital number, since it uses as much as digits as its factorization.

47945459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The square root of 47945459 is about 6924.2659538755. The cubic root of 47945459 is about 363.2864169891.

The spelling of 47945459 in words is "forty-seven million, nine hundred forty-five thousand, four hundred fifty-nine".