694457 has 2 divisors, whose sum is σ = 694458. Its totient is φ = 694456.

The previous prime is 694427. The next prime is 694471. The reversal of 694457 is 754496.

694457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606841 + 87616 = 779^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 694457 - 2⁸ = 694201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (694427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347228 + 347229.

It is an arithmetic number, because the mean of its divisors is an integer number (347229).

2⁶⁹⁴⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

694457 is a deficient number, since it is larger than the sum of its proper divisors (1).

694457 is an equidigital number, since it uses as much as digits as its factorization.

694457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 694457 is about 833.3408666326. The cubic root of 694457 is about 88.5554144527. Note that the first 3 decimals are identical.

The spelling of 694457 in words is "six hundred ninety-four thousand, four hundred fifty-seven".