1606856 has 16 divisors (see below), whose sum is σ = 3026700. Its totient is φ = 799744.

The previous prime is 1606853. The next prime is 1606859. The reversal of 1606856 is 6586061.

It is an interprime number because it is at equal distance from previous prime (1606853) and next prime (1606859).

It can be written as a sum of positive squares in 2 ways, for example, as 1522756 + 84100 = 1234^2 + 290^2 .

It is not an unprimeable number, because it can be changed into a prime (1606853) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2540 + ... + 3108.

2^1606856 is an apocalyptic number.

It is an amenable number.

1606856 is a deficient number, since it is larger than the sum of its proper divisors (1419844).

1606856 is a wasteful number, since it uses less digits than its factorization.

1606856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1606856 is about 1267.6182390610. The cubic root of 1606856 is about 117.1275303593.

The spelling of 1606856 in words is "one million, six hundred six thousand, eight hundred fifty-six".