20024117 has 2 divisors, whose sum is σ = 20024118. Its totient is φ = 20024116.

The previous prime is 20024083. The next prime is 20024129. The reversal of 20024117 is 71142002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19945156 + 78961 = 4466^2 + 281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20024117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20024095 and 20024104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20024167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012058 + 10012059.

It is an arithmetic number, because the mean of its divisors is an integer number (10012059).

Almost surely, 2^20024117 is an apocalyptic number.

It is an amenable number.

20024117 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024117 is an equidigital number, since it uses as much as digits as its factorization.

20024117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 20024117 is about 4474.8315052078. The cubic root of 20024117 is about 271.5508238498.

Adding to 20024117 its reverse (71142002), we get a palindrome (91166119).

The spelling of 20024117 in words is "twenty million, twenty-four thousand, one hundred seventeen".