84243119 has 2 divisors, whose sum is σ = 84243120. Its totient is φ = 84243118.

The previous prime is 84243113. The next prime is 84243139. The reversal of 84243119 is 91134248.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84243119 is a prime.

It is a super-2 number, since 2×84243119² = 14193806197696322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84243113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42121559 + 42121560.

It is an arithmetic number, because the mean of its divisors is an integer number (42121560).

Almost surely, 2^84243119 is an apocalyptic number.

84243119 is a deficient number, since it is larger than the sum of its proper divisors (1).

84243119 is an equidigital number, since it uses as much as digits as its factorization.

84243119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 84243119 is about 9178.4050357347. The cubic root of 84243119 is about 438.3740246006.

The spelling of 84243119 in words is "eighty-four million, two hundred forty-three thousand, one hundred nineteen".