20108417 has 8 divisors (see below), whose sum is σ = 23980416. Its totient is φ = 16486272.

The previous prime is 20108411. The next prime is 20108419. The reversal of 20108417 is 71480102.

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 20108417 - 2¹⁰ = 20107393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20108392 and 20108401.

It is not an unprimeable number, because it can be changed into a prime (20108411) 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, 62288 + ... + 62609.

It is an arithmetic number, because the mean of its divisors is an integer number (2997552).

Almost surely, 2^20108417 is an apocalyptic number.

It is an amenable number.

20108417 is a deficient number, since it is larger than the sum of its proper divisors (3871999).

20108417 is a wasteful number, since it uses less digits than its factorization.

20108417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124927.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 20108417 is about 4484.2409614114. The cubic root of 20108417 is about 271.9313597343.

Adding to 20108417 its reverse (71480102), we get a palindrome (91588519).

The spelling of 20108417 in words is "twenty million, one hundred eight thousand, four hundred seventeen".