83855743 has 2 divisors, whose sum is σ = 83855744. Its totient is φ = 83855742.

The previous prime is 83855731. The next prime is 83855749. The reversal of 83855743 is 34755838.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83855743 - 2¹⁷ = 83724671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83855743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83855749) 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, 41927871 + 41927872.

It is an arithmetic number, because the mean of its divisors is an integer number (41927872).

Almost surely, 2^83855743 is an apocalyptic number.

83855743 is a deficient number, since it is larger than the sum of its proper divisors (1).

83855743 is an equidigital number, since it uses as much as digits as its factorization.

83855743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 43.

The square root of 83855743 is about 9157.2781436407. The cubic root of 83855743 is about 437.7010654581.

The spelling of 83855743 in words is "eighty-three million, eight hundred fifty-five thousand, seven hundred forty-three".