1606680 has 48 divisors (see below), whose sum is σ = 5222880. Its totient is φ = 428352.

The previous prime is 1606669. The next prime is 1606681. The reversal of 1606680 is 866061.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606681) 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, 1872 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (108810).

2^1606680 is an apocalyptic number.

1606680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606680 is an abundant number, since it is smaller than the sum of its proper divisors (3616200).

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

1606680 is a wasteful number, since it uses less digits than its factorization.

1606680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1606680 is about 1267.5488156280. The cubic root of 1606680 is about 117.1232538512.

The spelling of 1606680 in words is "one million, six hundred six thousand, six hundred eighty".