697457 has 2 divisors, whose sum is σ = 697458. Its totient is φ = 697456.

The previous prime is 697453. The next prime is 697481. The reversal of 697457 is 754796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 579121 + 118336 = 761^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 697457 - 2² = 697453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 697457.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697457.

It is not a weakly prime, because it can be changed into another prime (697453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348728 + 348729.

It is an arithmetic number, because the mean of its divisors is an integer number (348729).

2⁶⁹⁷⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

697457 is a deficient number, since it is larger than the sum of its proper divisors (1).

697457 is an equidigital number, since it uses as much as digits as its factorization.

697457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 697457 is about 835.1389106011. The cubic root of 697457 is about 88.6827487616.

The spelling of 697457 in words is "six hundred ninety-seven thousand, four hundred fifty-seven".