697387967 has 2 divisors, whose sum is σ = 697387968. Its totient is φ = 697387966.

The previous prime is 697387961. The next prime is 697387981. The reversal of 697387967 is 769783796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 697387967 - 2⁶ = 697387903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697387961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348693983 + 348693984.

It is an arithmetic number, because the mean of its divisors is an integer number (348693984).

Almost surely, 2^697387967 is an apocalyptic number.

697387967 is a deficient number, since it is larger than the sum of its proper divisors (1).

697387967 is an equidigital number, since it uses as much as digits as its factorization.

697387967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24004512, while the sum is 62.

The square root of 697387967 is about 26408.1041917060. The cubic root of 697387967 is about 886.7982278041.

The spelling of 697387967 in words is "six hundred ninety-seven million, three hundred eighty-seven thousand, nine hundred sixty-seven".