1671606 has 12 divisors (see below), whose sum is σ = 3621852. Its totient is φ = 557196.

The previous prime is 1671599. The next prime is 1671619. The reversal of 1671606 is 6061761.

It is a self number, because there is not a number n which added to its sum of digits gives 1671606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46416 + ... + 46451.

It is an arithmetic number, because the mean of its divisors is an integer number (301821).

2^1671606 is an apocalyptic number.

1671606 is an abundant number, since it is smaller than the sum of its proper divisors (1950246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1671606 is a wasteful number, since it uses less digits than its factorization.

1671606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92875 (or 92872 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1671606 is about 1292.9060290679. The cubic root of 1671606 is about 118.6801191808.

The spelling of 1671606 in words is "one million, six hundred seventy-one thousand, six hundred six".