1606869 has 12 divisors (see below), whose sum is σ = 2532192. Its totient is φ = 973800.

The previous prime is 1606859. The next prime is 1606879. The reversal of 1606869 is 9686061.

It is an interprime number because it is at equal distance from previous prime (1606859) and next prime (1606879).

It is not a de Polignac number, because 1606869 - 2⁴ = 1606853 is a prime.

It is a super-2 number, since 2×1606869² = 5164055966322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8017 + ... + 8214.

It is an arithmetic number, because the mean of its divisors is an integer number (211016).

2^1606869 is an apocalyptic number.

It is an amenable number.

1606869 is a deficient number, since it is larger than the sum of its proper divisors (925323).

1606869 is a wasteful number, since it uses less digits than its factorization.

1606869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16248 (or 16245 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1606869 is about 1267.6233667774. The cubic root of 1606869 is about 117.1278462253.

The spelling of 1606869 in words is "one million, six hundred six thousand, eight hundred sixty-nine".