47965591 has 2 divisors, whose sum is σ = 47965592. Its totient is φ = 47965590.

The previous prime is 47965549. The next prime is 47965651. The reversal of 47965591 is 19556974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47965591 - 2⁹ = 47965079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47962591) 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, 23982795 + 23982796.

It is an arithmetic number, because the mean of its divisors is an integer number (23982796).

Almost surely, 2^47965591 is an apocalyptic number.

47965591 is a deficient number, since it is larger than the sum of its proper divisors (1).

47965591 is an equidigital number, since it uses as much as digits as its factorization.

47965591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 46.

The square root of 47965591 is about 6925.7195294063. The cubic root of 47965591 is about 363.3372571096.

The spelling of 47965591 in words is "forty-seven million, nine hundred sixty-five thousand, five hundred ninety-one".