1697228 has 24 divisors (see below), whose sum is σ = 3236352. Its totient is φ = 774144.

The previous prime is 1697197. The next prime is 1697231. The reversal of 1697228 is 8227961.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6476 + ... + 6732.

It is an arithmetic number, because the mean of its divisors is an integer number (134848).

2^1697228 is an apocalyptic number.

It is an amenable number.

1697228 is a deficient number, since it is larger than the sum of its proper divisors (1539124).

1697228 is a wasteful number, since it uses less digits than its factorization.

1697228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 399 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 1697228 is about 1302.7770338780. Note that the first 3 decimals coincide. The cubic root of 1697228 is about 119.2834145806.

The spelling of 1697228 in words is "one million, six hundred ninety-seven thousand, two hundred twenty-eight".