84882609 has 36 divisors (see below), whose sum is σ = 142611456. Its totient is φ = 47655216.

The previous prime is 84882571. The next prime is 84882617. The reversal of 84882609 is 90628848.

It is a happy number.

It is not a de Polignac number, because 84882609 - 2⁸ = 84882353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84882209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 668304 + ... + 668430.

Almost surely, 2^84882609 is an apocalyptic number.

It is an amenable number.

84882609 is a deficient number, since it is larger than the sum of its proper divisors (57728847).

84882609 is a wasteful number, since it uses less digits than its factorization.

84882609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 84882609 is about 9213.1758368111. The cubic root of 84882609 is about 439.4804628915.

It can be divided in two parts, 84882 and 609, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 84882609 in words is "eighty-four million, eight hundred eighty-two thousand, six hundred nine".