1706728 has 16 divisors (see below), whose sum is σ = 3214980. Its totient is φ = 849408.

The previous prime is 1706701. The next prime is 1706741. The reversal of 1706728 is 8276071.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1493284 + 213444 = 1222^2 + 462^2 .

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 1706728.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200 + ... + 2872.

2^1706728 is an apocalyptic number.

It is an amenable number.

1706728 is a deficient number, since it is larger than the sum of its proper divisors (1508252).

1706728 is a wasteful number, since it uses less digits than its factorization.

1706728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 1706728 is about 1306.4180035502. The cubic root of 1706728 is about 119.5055581176.

The spelling of 1706728 in words is "one million, seven hundred six thousand, seven hundred twenty-eight".