84131743 has 2 divisors, whose sum is σ = 84131744. Its totient is φ = 84131742.

The previous prime is 84131731. The next prime is 84131783. The reversal of 84131743 is 34713148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84131743 - 2⁹ = 84131231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84131783) 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, 42065871 + 42065872.

It is an arithmetic number, because the mean of its divisors is an integer number (42065872).

Almost surely, 2^84131743 is an apocalyptic number.

84131743 is a deficient number, since it is larger than the sum of its proper divisors (1).

84131743 is an equidigital number, since it uses as much as digits as its factorization.

84131743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 84131743 is about 9172.3357439640. The cubic root of 84131743 is about 438.1807511388.

The spelling of 84131743 in words is "eighty-four million, one hundred thirty-one thousand, seven hundred forty-three".