84068659 has 4 divisors (see below), whose sum is σ = 84206416. Its totient is φ = 83930904.

The previous prime is 84068623. The next prime is 84068681. The reversal of 84068659 is 95686048.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84068659 - 2¹¹ = 84066611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84068609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67959 + ... + 69184.

It is an arithmetic number, because the mean of its divisors is an integer number (21051604).

Almost surely, 2^84068659 is an apocalyptic number.

84068659 is a deficient number, since it is larger than the sum of its proper divisors (137757).

84068659 is a wasteful number, since it uses less digits than its factorization.

84068659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137756.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 84068659 is about 9168.8962803600. The cubic root of 84068659 is about 438.0712042729.

The spelling of 84068659 in words is "eighty-four million, sixty-eight thousand, six hundred fifty-nine".