694816 has 12 divisors (see below), whose sum is σ = 1367982. Its totient is φ = 347392.

The previous prime is 694789. The next prime is 694829. The reversal of 694816 is 618496.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 48400 = 804^2 + 220^2 .

It is a congruent number.

It is an unprimeable number.

694816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10825 + ... + 10888.

2⁶⁹⁴⁸¹⁶ is an apocalyptic number.

It is an amenable number.

694816 is a deficient number, since it is larger than the sum of its proper divisors (673166).

694816 is a wasteful number, since it uses less digits than its factorization.

694816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21723 (or 21715 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 694816 is about 833.5562368551. The cubic root of 694816 is about 88.5706714171.

The spelling of 694816 in words is "six hundred ninety-four thousand, eight hundred sixteen".