694487 has 2 divisors, whose sum is σ = 694488. Its totient is φ = 694486.

The previous prime is 694483. The next prime is 694511. The reversal of 694487 is 784496.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 694487 - 2² = 694483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 694487.

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 694487.

It is not a weakly prime, because it can be changed into another prime (694481) 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, 347243 + 347244.

It is an arithmetic number, because the mean of its divisors is an integer number (347244).

2⁶⁹⁴⁴⁸⁷ is an apocalyptic number.

694487 is a deficient number, since it is larger than the sum of its proper divisors (1).

694487 is an equidigital number, since it uses as much as digits as its factorization.

694487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 694487 is about 833.3588662755. The cubic root of 694487 is about 88.5566896093.

Subtracting 694487 from its reverse (784496), we obtain a palindrome (90009).

The spelling of 694487 in words is "six hundred ninety-four thousand, four hundred eighty-seven".