84234959 has 2 divisors, whose sum is σ = 84234960. Its totient is φ = 84234958.

The previous prime is 84234907. The next prime is 84234991. The reversal of 84234959 is 95943248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84234959 - 2¹² = 84230863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84264959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42117479 + 42117480.

It is an arithmetic number, because the mean of its divisors is an integer number (42117480).

Almost surely, 2^84234959 is an apocalyptic number.

84234959 is a deficient number, since it is larger than the sum of its proper divisors (1).

84234959 is an equidigital number, since it uses as much as digits as its factorization.

84234959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 84234959 is about 9177.9605032927. The cubic root of 84234959 is about 438.3598701407.

The spelling of 84234959 in words is "eighty-four million, two hundred thirty-four thousand, nine hundred fifty-nine".