47803391 has 2 divisors, whose sum is σ = 47803392. Its totient is φ = 47803390.

The previous prime is 47803381. The next prime is 47803409. The reversal of 47803391 is 19330874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47803391 - 2¹⁰ = 47802367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47803331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23901695 + 23901696.

It is an arithmetic number, because the mean of its divisors is an integer number (23901696).

Almost surely, 2^47803391 is an apocalyptic number.

47803391 is a deficient number, since it is larger than the sum of its proper divisors (1).

47803391 is an equidigital number, since it uses as much as digits as its factorization.

47803391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 47803391 is about 6913.9996384148. Note that the first 3 decimals coincide. The cubic root of 47803391 is about 362.9272419550.

The spelling of 47803391 in words is "forty-seven million, eight hundred three thousand, three hundred ninety-one".