694644 has 24 divisors (see below), whose sum is σ = 1639008. Its totient is φ = 228960.

The previous prime is 694633. The next prime is 694649. The reversal of 694644 is 446496.

694644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 16.

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 694644.

It is not an unprimeable number, because it can be changed into a prime (694649) by changing a digit.

694644 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014 + ... + 1554.

It is an arithmetic number, because the mean of its divisors is an integer number (68292).

2⁶⁹⁴⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

694644 is an abundant number, since it is smaller than the sum of its proper divisors (944364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

694644 is a wasteful number, since it uses less digits than its factorization.

694644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 653 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 694644 is about 833.4530580663. The cubic root of 694644 is about 88.5633623297.

The spelling of 694644 in words is "six hundred ninety-four thousand, six hundred forty-four".