20084869 has 8 divisors (see below), whose sum is σ = 23694848. Its totient is φ = 16660080.

The previous prime is 20084851. The next prime is 20084873. The reversal of 20084869 is 96848002.

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

It is a cyclic number.

It is not a de Polignac number, because 20084869 - 2⁹ = 20084357 is a prime.

It is a super-2 number, since 2×20084869² = 806803925494322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20084899) 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 7 ways as a sum of consecutive naturals, for example, 46062 + ... + 46495.

It is an arithmetic number, because the mean of its divisors is an integer number (2961856).

Almost surely, 2^20084869 is an apocalyptic number.

It is an amenable number.

20084869 is a deficient number, since it is larger than the sum of its proper divisors (3609979).

20084869 is an equidigital number, since it uses as much as digits as its factorization.

20084869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92595.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 20084869 is about 4481.6145528146. The cubic root of 20084869 is about 271.8251696934.

The spelling of 20084869 in words is "twenty million, eighty-four thousand, eight hundred sixty-nine".