84985727 has 4 divisors (see below), whose sum is σ = 89458680. Its totient is φ = 80512776.

The previous prime is 84985721. The next prime is 84985757. The reversal of 84985727 is 72758948.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84985727 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 (84985721) 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, 2236448 + ... + 2236485.

It is an arithmetic number, because the mean of its divisors is an integer number (22364670).

Almost surely, 2^84985727 is an apocalyptic number.

84985727 is a deficient number, since it is larger than the sum of its proper divisors (4472953).

84985727 is a wasteful number, since it uses less digits than its factorization.

84985727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472952.

The product of its digits is 1128960, while the sum is 50.

The square root of 84985727 is about 9218.7703626894. The cubic root of 84985727 is about 439.6583556618.

The spelling of 84985727 in words is "eighty-four million, nine hundred eighty-five thousand, seven hundred twenty-seven".