84913859 has 2 divisors, whose sum is σ = 84913860. Its totient is φ = 84913858.

The previous prime is 84913847. The next prime is 84913903. The reversal of 84913859 is 95831948.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84913859 is a prime.

It is not a weakly prime, because it can be changed into another prime (84913259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42456929 + 42456930.

It is an arithmetic number, because the mean of its divisors is an integer number (42456930).

Almost surely, 2^84913859 is an apocalyptic number.

84913859 is a deficient number, since it is larger than the sum of its proper divisors (1).

84913859 is an equidigital number, since it uses as much as digits as its factorization.

84913859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 47.

The square root of 84913859 is about 9214.8716214606. The cubic root of 84913859 is about 439.5343886587.

The spelling of 84913859 in words is "eighty-four million, nine hundred thirteen thousand, eight hundred fifty-nine".