197313769 has 2 divisors, whose sum is σ = 197313770. Its totient is φ = 197313768.

The previous prime is 197313763. The next prime is 197313773. The reversal of 197313769 is 967313791.

197313769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146119744 + 51194025 = 12088^2 + 7155^2 .

It is a cyclic number.

It is not a de Polignac number, because 197313769 - 2³ = 197313761 is a prime.

It is a super-2 number, since 2×197313769² = 77865446873970722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (197313761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98656884 + 98656885.

It is an arithmetic number, because the mean of its divisors is an integer number (98656885).

Almost surely, 2^197313769 is an apocalyptic number.

It is an amenable number.

197313769 is a deficient number, since it is larger than the sum of its proper divisors (1).

197313769 is an equidigital number, since it uses as much as digits as its factorization.

197313769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214326, while the sum is 46.

The square root of 197313769 is about 14046.8419582481. The cubic root of 197313769 is about 582.1735418914.

The spelling of 197313769 in words is "one hundred ninety-seven million, three hundred thirteen thousand, seven hundred sixty-nine".