47847461 has 2 divisors, whose sum is σ = 47847462. Its totient is φ = 47847460.

The previous prime is 47847439. The next prime is 47847467. The reversal of 47847461 is 16474874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38514436 + 9333025 = 6206^2 + 3055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47847461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47847467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23923730 + 23923731.

It is an arithmetic number, because the mean of its divisors is an integer number (23923731).

Almost surely, 2^47847461 is an apocalyptic number.

It is an amenable number.

47847461 is a deficient number, since it is larger than the sum of its proper divisors (1).

47847461 is an equidigital number, since it uses as much as digits as its factorization.

47847461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 41.

The square root of 47847461 is about 6917.1859162524. The cubic root of 47847461 is about 363.0387353778.

The spelling of 47847461 in words is "forty-seven million, eight hundred forty-seven thousand, four hundred sixty-one".