84198743 has 2 divisors, whose sum is σ = 84198744. Its totient is φ = 84198742.

The previous prime is 84198731. The next prime is 84198757. The reversal of 84198743 is 34789148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84198743 - 2²⁰ = 83150167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84198694 and 84198703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84198043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42099371 + 42099372.

It is an arithmetic number, because the mean of its divisors is an integer number (42099372).

Almost surely, 2^84198743 is an apocalyptic number.

84198743 is a deficient number, since it is larger than the sum of its proper divisors (1).

84198743 is an equidigital number, since it uses as much as digits as its factorization.

84198743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 84198743 is about 9175.9873038273. The cubic root of 84198743 is about 438.2970382833.

The spelling of 84198743 in words is "eighty-four million, one hundred ninety-eight thousand, seven hundred forty-three".