84875643 has 6 divisors (see below), whose sum is σ = 122598164. Its totient is φ = 56583756.

The previous prime is 84875633. The next prime is 84875647. The reversal of 84875643 is 34657848.

84875643 is a `hidden beast` number, since 8 + 4 + 87 + 564 + 3 = 666.

It is not a de Polignac number, because 84875643 - 2⁸ = 84875387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84875647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4715305 + ... + 4715322.

Almost surely, 2^84875643 is an apocalyptic number.

84875643 is a deficient number, since it is larger than the sum of its proper divisors (37722521).

84875643 is a wasteful number, since it uses less digits than its factorization.

84875643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9430633 (or 9430630 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 84875643 is about 9212.7977835183. The cubic root of 84875643 is about 439.4684403870.

The spelling of 84875643 in words is "eighty-four million, eight hundred seventy-five thousand, six hundred forty-three".