47304839 has 2 divisors, whose sum is σ = 47304840. Its totient is φ = 47304838.

The previous prime is 47304811. The next prime is 47304841. The reversal of 47304839 is 93840374.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47304839 - 2²⁰ = 46256263 is a prime.

Together with 47304841, 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 (47304809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23652419 + 23652420.

It is an arithmetic number, because the mean of its divisors is an integer number (23652420).

Almost surely, 2^47304839 is an apocalyptic number.

47304839 is a deficient number, since it is larger than the sum of its proper divisors (1).

47304839 is an equidigital number, since it uses as much as digits as its factorization.

47304839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 47304839 is about 6877.8513359915. The cubic root of 47304839 is about 361.6611477658.

The spelling of 47304839 in words is "forty-seven million, three hundred four thousand, eight hundred thirty-nine".