47930291 has 2 divisors, whose sum is σ = 47930292. Its totient is φ = 47930290.

The previous prime is 47930279. The next prime is 47930299. The reversal of 47930291 is 19203974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47930291 is a prime.

It is not a weakly prime, because it can be changed into another prime (47930299) 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, 23965145 + 23965146.

It is an arithmetic number, because the mean of its divisors is an integer number (23965146).

Almost surely, 2^47930291 is an apocalyptic number.

47930291 is a deficient number, since it is larger than the sum of its proper divisors (1).

47930291 is an equidigital number, since it uses as much as digits as its factorization.

47930291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 47930291 is about 6923.1705886826. The cubic root of 47930291 is about 363.2481032491.

The spelling of 47930291 in words is "forty-seven million, nine hundred thirty thousand, two hundred ninety-one".