697342319 has 2 divisors, whose sum is σ = 697342320. Its totient is φ = 697342318.

The previous prime is 697342297. The next prime is 697342343. The reversal of 697342319 is 913243796.

697342319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-697342319 is a prime.

It is a super-2 number, since 2×697342319² = 972572619736595522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 697342319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697342369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348671159 + 348671160.

It is an arithmetic number, because the mean of its divisors is an integer number (348671160).

Almost surely, 2^697342319 is an apocalyptic number.

697342319 is a deficient number, since it is larger than the sum of its proper divisors (1).

697342319 is an equidigital number, since it uses as much as digits as its factorization.

697342319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 44.

The square root of 697342319 is about 26407.2398974221. The cubic root of 697342319 is about 886.7788787231.

The spelling of 697342319 in words is "six hundred ninety-seven million, three hundred forty-two thousand, three hundred nineteen".