697727 has 2 divisors, whose sum is σ = 697728. Its totient is φ = 697726.

The previous prime is 697703. The next prime is 697729. The reversal of 697727 is 727796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 697727 - 2¹⁸ = 435583 is a prime.

Together with 697729, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697727.

It is not a weakly prime, because it can be changed into another prime (697729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348863 + 348864.

It is an arithmetic number, because the mean of its divisors is an integer number (348864).

2⁶⁹⁷⁷²⁷ is an apocalyptic number.

697727 is a deficient number, since it is larger than the sum of its proper divisors (1).

697727 is an equidigital number, since it uses as much as digits as its factorization.

697727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37044, while the sum is 38.

The square root of 697727 is about 835.3005447143. The cubic root of 697727 is about 88.6941909260.

The spelling of 697727 in words is "six hundred ninety-seven thousand, seven hundred twenty-seven".