694439 has 8 divisors (see below), whose sum is σ = 733920. Its totient is φ = 655776.

The previous prime is 694427. The next prime is 694457. The reversal of 694439 is 934496.

It is a happy number.

694439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-694439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 694399 and 694408.

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 694439.

It is not an unprimeable number, because it can be changed into a prime (694409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369 + ... + 2645.

It is an arithmetic number, because the mean of its divisors is an integer number (91740).

2⁶⁹⁴⁴³⁹ is an apocalyptic number.

694439 is a deficient number, since it is larger than the sum of its proper divisors (39481).

694439 is a wasteful number, since it uses less digits than its factorization.

694439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its digits is 23328, while the sum is 35.

The square root of 694439 is about 833.3300666603. The cubic root of 694439 is about 88.5546493412.

The spelling of 694439 in words is "six hundred ninety-four thousand, four hundred thirty-nine".