84113959 has 2 divisors, whose sum is σ = 84113960. Its totient is φ = 84113958.

The previous prime is 84113957. The next prime is 84114029. The reversal of 84113959 is 95931148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84113959 - 2¹ = 84113957 is a prime.

Together with 84113957, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4895284 and since 84113959 and 4895284 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84113957) 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, 42056979 + 42056980.

It is an arithmetic number, because the mean of its divisors is an integer number (42056980).

Almost surely, 2^84113959 is an apocalyptic number.

84113959 is a deficient number, since it is larger than the sum of its proper divisors (1).

84113959 is an equidigital number, since it uses as much as digits as its factorization.

84113959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 84113959 is about 9171.3662559076. The cubic root of 84113959 is about 438.1498743443.

The spelling of 84113959 in words is "eighty-four million, one hundred thirteen thousand, nine hundred fifty-nine".