20107597 has 2 divisors, whose sum is σ = 20107598. Its totient is φ = 20107596.

The previous prime is 20107573. The next prime is 20107603. The reversal of 20107597 is 79570102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13169641 + 6937956 = 3629^2 + 2634^2 .

It is a cyclic number.

It is not a de Polignac number, because 20107597 - 2¹¹ = 20105549 is a prime.

It is a super-2 number, since 2×20107597² = 808630914228818, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20107397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10053798 + 10053799.

It is an arithmetic number, because the mean of its divisors is an integer number (10053799).

Almost surely, 2^20107597 is an apocalyptic number.

It is an amenable number.

20107597 is a deficient number, since it is larger than the sum of its proper divisors (1).

20107597 is an equidigital number, since it uses as much as digits as its factorization.

20107597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 20107597 is about 4484.1495291750. The cubic root of 20107597 is about 271.9276633262.

Adding to 20107597 its reverse (79570102), we get a palindrome (99677699).

The spelling of 20107597 in words is "twenty million, one hundred seven thousand, five hundred ninety-seven".