20104671 has 8 divisors (see below), whose sum is σ = 26866224. Its totient is φ = 13373120.

The previous prime is 20104657. The next prime is 20104697. The reversal of 20104671 is 17640102.

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 20104671 - 2⁵ = 20104639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104171) 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, 5886 + ... + 8651.

It is an arithmetic number, because the mean of its divisors is an integer number (3358278).

Almost surely, 2^20104671 is an apocalyptic number.

20104671 is a deficient number, since it is larger than the sum of its proper divisors (6761553).

20104671 is a wasteful number, since it uses less digits than its factorization.

20104671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 20104671 is about 4483.8232569984. The cubic root of 20104671 is about 271.9144726411.

Adding to 20104671 its reverse (17640102), we get a palindrome (37744773).

The spelling of 20104671 in words is "twenty million, one hundred four thousand, six hundred seventy-one".