196769569 has 2 divisors, whose sum is σ = 196769570. Its totient is φ = 196769568.

The previous prime is 196769563. The next prime is 196769579. The reversal of 196769569 is 965967691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195300625 + 1468944 = 13975^2 + 1212^2 .

It is a cyclic number.

It is not a de Polignac number, because 196769569 - 2⁹ = 196769057 is a prime.

It is a super-2 number, since 2×196769569² = 77436526568891522, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (196769563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98384784 + 98384785.

It is an arithmetic number, because the mean of its divisors is an integer number (98384785).

Almost surely, 2^196769569 is an apocalyptic number.

It is an amenable number.

196769569 is a deficient number, since it is larger than the sum of its proper divisors (1).

196769569 is an equidigital number, since it uses as much as digits as its factorization.

196769569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 58.

The square root of 196769569 is about 14027.4576812764. The cubic root of 196769569 is about 581.6378290570.

The spelling of 196769569 in words is "one hundred ninety-six million, seven hundred sixty-nine thousand, five hundred sixty-nine".