84346859 has 2 divisors, whose sum is σ = 84346860. Its totient is φ = 84346858.

The previous prime is 84346831. The next prime is 84346861. The reversal of 84346859 is 95864348.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84346859 is a prime.

It is a super-3 number, since 3×84346859³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 84346861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84346259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42173429 + 42173430.

It is an arithmetic number, because the mean of its divisors is an integer number (42173430).

Almost surely, 2^84346859 is an apocalyptic number.

84346859 is a deficient number, since it is larger than the sum of its proper divisors (1).

84346859 is an equidigital number, since it uses as much as digits as its factorization.

84346859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The square root of 84346859 is about 9184.0546056739. The cubic root of 84346859 is about 438.5538939569.

The spelling of 84346859 in words is "eighty-four million, three hundred forty-six thousand, eight hundred fifty-nine".