84009885 has 8 divisors (see below), whose sum is σ = 134415840. Its totient is φ = 44805264.

The previous prime is 84009847. The next prime is 84009899. The reversal of 84009885 is 58890048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84009885 - 2¹¹ = 84007837 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2800315 + ... + 2800344.

It is an arithmetic number, because the mean of its divisors is an integer number (16801980).

Almost surely, 2^84009885 is an apocalyptic number.

It is an amenable number.

84009885 is a deficient number, since it is larger than the sum of its proper divisors (50405955).

84009885 is a wasteful number, since it uses less digits than its factorization.

84009885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600667.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 84009885 is about 9165.6906450087. The cubic root of 84009885 is about 437.9690925002.

The spelling of 84009885 in words is "eighty-four million, nine thousand, eight hundred eighty-five".