694997 has 2 divisors, whose sum is σ = 694998. Its totient is φ = 694996.

The previous prime is 694987. The next prime is 694999. The reversal of 694997 is 799496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 586756 + 108241 = 766^2 + 329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-694997 is a prime.

Together with 694999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694999) 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, 347498 + 347499.

It is an arithmetic number, because the mean of its divisors is an integer number (347499).

2⁶⁹⁴⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

694997 is a deficient number, since it is larger than the sum of its proper divisors (1).

694997 is an equidigital number, since it uses as much as digits as its factorization.

694997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 44.

The square root of 694997 is about 833.6648007443. The cubic root of 694997 is about 88.5783616544.

The spelling of 694997 in words is "six hundred ninety-four thousand, nine hundred ninety-seven".