694789 has 2 divisors, whose sum is σ = 694790. Its totient is φ = 694788.

The previous prime is 694783. The next prime is 694829. The reversal of 694789 is 987496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693889 + 900 = 833^2 + 30^2 .

It is a cyclic number.

It is not a de Polignac number, because 694789 - 2³ = 694781 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347394 + 347395.

It is an arithmetic number, because the mean of its divisors is an integer number (347395).

2⁶⁹⁴⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

694789 is a deficient number, since it is larger than the sum of its proper divisors (1).

694789 is an equidigital number, since it uses as much as digits as its factorization.

694789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 694789 is about 833.5400410298. The cubic root of 694789 is about 88.5695241402.

The spelling of 694789 in words is "six hundred ninety-four thousand, seven hundred eighty-nine".