694066 has 4 divisors (see below), whose sum is σ = 1041102. Its totient is φ = 347032.

The previous prime is 694061. The next prime is 694069. The reversal of 694066 is 660496.

694066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 616225 + 77841 = 785^2 + 279^2 .

It is a super-2 number, since 2×694066² = 963455224712, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (694061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173515 + ... + 173518.

2⁶⁹⁴⁰⁶⁶ is an apocalyptic number.

694066 is a deficient number, since it is larger than the sum of its proper divisors (347036).

694066 is a wasteful number, since it uses less digits than its factorization.

694066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347035.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 694066 is about 833.1062357227. The cubic root of 694066 is about 88.5387915529.

The spelling of 694066 in words is "six hundred ninety-four thousand, sixty-six".