20004107 has 2 divisors, whose sum is σ = 20004108. Its totient is φ = 20004106.

The previous prime is 20004071. The next prime is 20004133. The reversal of 20004107 is 70140002.

It is a happy number.

Together with previous prime (20004071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20004107 - 2¹⁶ = 19938571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20004091 and 20004100.

It is not a weakly prime, because it can be changed into another prime (20004137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002053 + 10002054.

It is an arithmetic number, because the mean of its divisors is an integer number (10002054).

Almost surely, 2^20004107 is an apocalyptic number.

20004107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004107 is an equidigital number, since it uses as much as digits as its factorization.

20004107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 20004107 is about 4472.5951079882. The cubic root of 20004107 is about 271.4603405764.

Adding to 20004107 its reverse (70140002), we get a palindrome (90144109).

The spelling of 20004107 in words is "twenty million, four thousand, one hundred seven".