47783143 has 2 divisors, whose sum is σ = 47783144. Its totient is φ = 47783142.

The previous prime is 47783137. The next prime is 47783147. The reversal of 47783143 is 34138774.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47783143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47783147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23891571 + 23891572.

It is an arithmetic number, because the mean of its divisors is an integer number (23891572).

Almost surely, 2^47783143 is an apocalyptic number.

47783143 is a deficient number, since it is larger than the sum of its proper divisors (1).

47783143 is an equidigital number, since it uses as much as digits as its factorization.

47783143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

The square root of 47783143 is about 6912.5352078669. The cubic root of 47783143 is about 362.8759932296.

It can be divided in two parts, 4778 and 3143, that added together give a square (7921 = 89²).

The spelling of 47783143 in words is "forty-seven million, seven hundred eighty-three thousand, one hundred forty-three".