697259 has 2 divisors, whose sum is σ = 697260. Its totient is φ = 697258.

The previous prime is 697217. The next prime is 697261. The reversal of 697259 is 952796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 697259 - 2¹⁶ = 631723 is a prime.

It is a super-2 number, since 2×697259² = 972340226162, which contains 22 as substring.

Together with 697261, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697259.

It is not a weakly prime, because it can be changed into another prime (697759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348629 + 348630.

It is an arithmetic number, because the mean of its divisors is an integer number (348630).

2⁶⁹⁷²⁵⁹ is an apocalyptic number.

697259 is a deficient number, since it is larger than the sum of its proper divisors (1).

697259 is an equidigital number, since it uses as much as digits as its factorization.

697259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 697259 is about 835.0203590332. The cubic root of 697259 is about 88.6743559641.

The spelling of 697259 in words is "six hundred ninety-seven thousand, two hundred fifty-nine".