20341397 has 2 divisors, whose sum is σ = 20341398. Its totient is φ = 20341396.

The previous prime is 20341393. The next prime is 20341411. The reversal of 20341397 is 79314302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13586596 + 6754801 = 3686^2 + 2599^2 .

It is a cyclic number.

It is not a de Polignac number, because 20341397 - 2² = 20341393 is a prime.

It is a super-3 number, since 3×20341397³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20341393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10170698 + 10170699.

It is an arithmetic number, because the mean of its divisors is an integer number (10170699).

Almost surely, 2^20341397 is an apocalyptic number.

It is an amenable number.

20341397 is a deficient number, since it is larger than the sum of its proper divisors (1).

20341397 is an equidigital number, since it uses as much as digits as its factorization.

20341397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 20341397 is about 4510.1437892821. The cubic root of 20341397 is about 272.9775460429.

Adding to 20341397 its reverse (79314302), we get a palindrome (99655699).

The spelling of 20341397 in words is "twenty million, three hundred forty-one thousand, three hundred ninety-seven".