47885231 has 2 divisors, whose sum is σ = 47885232. Its totient is φ = 47885230.

The previous prime is 47885213. The next prime is 47885237. The reversal of 47885231 is 13258874.

Together with previous prime (47885213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47885231 is a prime.

It is a super-2 number, since 2×47885231² = 4585990695846722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47885237) 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, 23942615 + 23942616.

It is an arithmetic number, because the mean of its divisors is an integer number (23942616).

Almost surely, 2^47885231 is an apocalyptic number.

47885231 is a deficient number, since it is larger than the sum of its proper divisors (1).

47885231 is an equidigital number, since it uses as much as digits as its factorization.

47885231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 47885231 is about 6919.9155341666. The cubic root of 47885231 is about 363.1342358587.

The spelling of 47885231 in words is "forty-seven million, eight hundred eighty-five thousand, two hundred thirty-one".