20084605 has 8 divisors (see below), whose sum is σ = 24228864. Its totient is φ = 15982800.

The previous prime is 20084591. The next prime is 20084609. The reversal of 20084605 is 50648002.

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

It is not a de Polignac number, because 20084605 - 2⁵ = 20084573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20084605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20084609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9561 + ... + 11470.

It is an arithmetic number, because the mean of its divisors is an integer number (3028608).

Almost surely, 2^20084605 is an apocalyptic number.

It is an amenable number.

20084605 is a deficient number, since it is larger than the sum of its proper divisors (4144259).

20084605 is a wasteful number, since it uses less digits than its factorization.

20084605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21227.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 20084605 is about 4481.5850990470. The cubic root of 20084605 is about 271.8239787113.

The spelling of 20084605 in words is "twenty million, eighty-four thousand, six hundred five".