694228 has 12 divisors (see below), whose sum is σ = 1222452. Its totient is φ = 344960.

The previous prime is 694223. The next prime is 694259. The reversal of 694228 is 822496.

It can be written as a sum of positive squares in 2 ways, for example, as 446224 + 248004 = 668^2 + 498^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 694228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348 + ... + 1228.

It is an arithmetic number, because the mean of its divisors is an integer number (101871).

2⁶⁹⁴²²⁸ is an apocalyptic number.

It is an amenable number.

694228 is a deficient number, since it is larger than the sum of its proper divisors (528224).

694228 is a wasteful number, since it uses less digits than its factorization.

694228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1080 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 694228 is about 833.2034565459. The cubic root of 694228 is about 88.5456795475.

It can be divided in two parts, 6942 and 28, that multiplied together give a triangular number (194376 = T₆₂₃).

The spelling of 694228 in words is "six hundred ninety-four thousand, two hundred twenty-eight".