84986847 has 32 divisors (see below), whose sum is σ = 139633920. Its totient is φ = 50652000.

The previous prime is 84986831. The next prime is 84986851. The reversal of 84986847 is 74868948.

It is not a de Polignac number, because 84986847 - 2⁴ = 84986831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84986793 and 84986802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84986047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15772 + ... + 20462.

It is an arithmetic number, because the mean of its divisors is an integer number (4363560).

Almost surely, 2^84986847 is an apocalyptic number.

84986847 is a deficient number, since it is larger than the sum of its proper divisors (54647073).

84986847 is a wasteful number, since it uses less digits than its factorization.

84986847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772 (or 4766 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 84986847 is about 9218.8311081178. The cubic root of 84986847 is about 439.6602870261.

The spelling of 84986847 in words is "eighty-four million, nine hundred eighty-six thousand, eight hundred forty-seven".