20104727 has 8 divisors (see below), whose sum is σ = 21863376. Its totient is φ = 18410112.

The previous prime is 20104703. The next prime is 20104729. The reversal of 20104727 is 72740102.

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 20104727 - 2¹⁶ = 20039191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104729) 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, 15353 + ... + 16610.

It is an arithmetic number, because the mean of its divisors is an integer number (2732922).

Almost surely, 2^20104727 is an apocalyptic number.

20104727 is a deficient number, since it is larger than the sum of its proper divisors (1758649).

20104727 is a wasteful number, since it uses less digits than its factorization.

20104727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32017.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 20104727 is about 4483.8295016648. The cubic root of 20104727 is about 271.9147251064.

Adding to 20104727 its reverse (72740102), we get a palindrome (92844829).

The spelling of 20104727 in words is "twenty million, one hundred four thousand, seven hundred twenty-seven".