84859879 has 8 divisors (see below), whose sum is σ = 92227520. Its totient is φ = 77612256.

The previous prime is 84859867. The next prime is 84859883. The reversal of 84859879 is 97895848.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84859879 - 2⁵ = 84859847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84859279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28527 + ... + 31360.

It is an arithmetic number, because the mean of its divisors is an integer number (11528440).

Almost surely, 2^84859879 is an apocalyptic number.

84859879 is a deficient number, since it is larger than the sum of its proper divisors (7367641).

84859879 is a wasteful number, since it uses less digits than its factorization.

84859879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60009.

The product of its digits is 5806080, while the sum is 58.

The square root of 84859879 is about 9211.9421947817. The cubic root of 84859879 is about 439.4412311304.

The spelling of 84859879 in words is "eighty-four million, eight hundred fifty-nine thousand, eight hundred seventy-nine".