84989475 has 36 divisors (see below), whose sum is σ = 155119536. Its totient is φ = 44466240.

The previous prime is 84989467. The next prime is 84989479. The reversal of 84989475 is 57498948.

84989475 is a `hidden beast` number, since 84 + 98 + 9 + 475 = 666.

It is not a de Polignac number, because 84989475 - 2³ = 84989467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84989479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8362 + ... + 15488.

It is an arithmetic number, because the mean of its divisors is an integer number (4308876).

Almost surely, 2^84989475 is an apocalyptic number.

84989475 is a deficient number, since it is larger than the sum of its proper divisors (70130061).

84989475 is a wasteful number, since it uses less digits than its factorization.

84989475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196 (or 7188 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 84989475 is about 9218.9736413551. The cubic root of 84989475 is about 439.6648187678.

The spelling of 84989475 in words is "eighty-four million, nine hundred eighty-nine thousand, four hundred seventy-five".