47870591 has 2 divisors, whose sum is σ = 47870592. Its totient is φ = 47870590.

The previous prime is 47870579. The next prime is 47870593. The reversal of 47870591 is 19507874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47870591 - 2⁶ = 47870527 is a prime.

It is a Sophie Germain prime.

Together with 47870593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47870593) 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, 23935295 + 23935296.

It is an arithmetic number, because the mean of its divisors is an integer number (23935296).

Almost surely, 2^47870591 is an apocalyptic number.

47870591 is a deficient number, since it is larger than the sum of its proper divisors (1).

47870591 is an equidigital number, since it uses as much as digits as its factorization.

47870591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 47870591 is about 6918.8576369224. The cubic root of 47870591 is about 363.0972249545.

The spelling of 47870591 in words is "forty-seven million, eight hundred seventy thousand, five hundred ninety-one".