20107713 has 4 divisors (see below), whose sum is σ = 26810288. Its totient is φ = 13405140.

The previous prime is 20107693. The next prime is 20107729. The reversal of 20107713 is 31770102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20107713 - 2⁶ = 20107649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20107713.

It is not an unprimeable number, because it can be changed into a prime (20107733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3351283 + ... + 3351288.

It is an arithmetic number, because the mean of its divisors is an integer number (6702572).

Almost surely, 2^20107713 is an apocalyptic number.

It is an amenable number.

20107713 is a deficient number, since it is larger than the sum of its proper divisors (6702575).

20107713 is an equidigital number, since it uses as much as digits as its factorization.

20107713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702574.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 20107713 is about 4484.1624636045. The cubic root of 20107713 is about 271.9281862388.

Adding to 20107713 its reverse (31770102), we get a palindrome (51877815).

The spelling of 20107713 in words is "twenty million, one hundred seven thousand, seven hundred thirteen".