20041747 has 8 divisors (see below), whose sum is σ = 22141440. Its totient is φ = 17988360.

The previous prime is 20041739. The next prime is 20041757. The reversal of 20041747 is 74714002.

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 20041747 - 2³ = 20041739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20041757) 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, 10663 + ... + 12400.

It is an arithmetic number, because the mean of its divisors is an integer number (2767680).

Almost surely, 2^20041747 is an apocalyptic number.

20041747 is a deficient number, since it is larger than the sum of its proper divisors (2099693).

20041747 is a wasteful number, since it uses less digits than its factorization.

20041747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23153.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 20041747 is about 4476.8009783773. The cubic root of 20041747 is about 271.6304950565.

Adding to 20041747 its reverse (74714002), we get a palindrome (94755749).

The spelling of 20041747 in words is "twenty million, forty-one thousand, seven hundred forty-seven".