47590891 has 2 divisors, whose sum is σ = 47590892. Its totient is φ = 47590890.

The previous prime is 47590889. The next prime is 47590901. The reversal of 47590891 is 19809574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47590891 - 2¹ = 47590889 is a prime.

Together with 47590889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47590091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23795445 + 23795446.

It is an arithmetic number, because the mean of its divisors is an integer number (23795446).

Almost surely, 2^47590891 is an apocalyptic number.

47590891 is a deficient number, since it is larger than the sum of its proper divisors (1).

47590891 is an equidigital number, since it uses as much as digits as its factorization.

47590891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 47590891 is about 6898.6151508835. The cubic root of 47590891 is about 362.3886706877.

The spelling of 47590891 in words is "forty-seven million, five hundred ninety thousand, eight hundred ninety-one".