20003297 has 2 divisors, whose sum is σ = 20003298. Its totient is φ = 20003296.

The previous prime is 20003293. The next prime is 20003317. The reversal of 20003297 is 79230002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19989841 + 13456 = 4471^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 20003297 - 2² = 20003293 is a prime.

It is not a weakly prime, because it can be changed into another prime (20003293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001648 + 10001649.

It is an arithmetic number, because the mean of its divisors is an integer number (10001649).

Almost surely, 2^20003297 is an apocalyptic number.

It is an amenable number.

20003297 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003297 is an equidigital number, since it uses as much as digits as its factorization.

20003297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 20003297 is about 4472.5045556153. The cubic root of 20003297 is about 271.4566765647.

Adding to 20003297 its reverse (79230002), we get a palindrome (99233299).

The spelling of 20003297 in words is "twenty million, three thousand, two hundred ninety-seven".