84994879 has 4 divisors (see below), whose sum is σ = 85820176. Its totient is φ = 84169584.

The previous prime is 84994873. The next prime is 84994891. The reversal of 84994879 is 97849948.

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 84994879 - 2¹³ = 84986687 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 (84994873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412494 + ... + 412699.

It is an arithmetic number, because the mean of its divisors is an integer number (21455044).

Almost surely, 2^84994879 is an apocalyptic number.

84994879 is a deficient number, since it is larger than the sum of its proper divisors (825297).

84994879 is a wasteful number, since it uses less digits than its factorization.

84994879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825296.

The product of its digits is 5225472, while the sum is 58.

The square root of 84994879 is about 9219.2667278911. The cubic root of 84994879 is about 439.6741371700.

The spelling of 84994879 in words is "eighty-four million, nine hundred ninety-four thousand, eight hundred seventy-nine".