84870885 has 64 divisors (see below), whose sum is σ = 159252480. Its totient is φ = 38138880.

The previous prime is 84870883. The next prime is 84870893. The reversal of 84870885 is 58807848.

It is not a de Polignac number, because 84870885 - 2¹ = 84870883 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84870883) 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 63 ways as a sum of consecutive naturals, for example, 221404 + ... + 221786.

It is an arithmetic number, because the mean of its divisors is an integer number (2488320).

Almost surely, 2^84870885 is an apocalyptic number.

84870885 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84870885 is a deficient number, since it is larger than the sum of its proper divisors (74381595).

84870885 is a wasteful number, since it uses less digits than its factorization.

84870885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 573440, while the sum is 48.

The square root of 84870885 is about 9212.5395521539. The cubic root of 84870885 is about 439.4602282552.

The spelling of 84870885 in words is "eighty-four million, eight hundred seventy thousand, eight hundred eighty-five".