1606172 has 12 divisors (see below), whose sum is σ = 2901696. Its totient is φ = 777120.

The previous prime is 1606153. The next prime is 1606201. The reversal of 1606172 is 2716061.

It is a congruent number.

It is an unprimeable number.

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, 6353 + ... + 6600.

It is an arithmetic number, because the mean of its divisors is an integer number (241808).

2^1606172 is an apocalyptic number.

It is an amenable number.

1606172 is a deficient number, since it is larger than the sum of its proper divisors (1295524).

1606172 is a wasteful number, since it uses less digits than its factorization.

1606172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12988 (or 12986 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1606172 is about 1267.3484130262. The cubic root of 1606172 is about 117.1109085419.

The spelling of 1606172 in words is "one million, six hundred six thousand, one hundred seventy-two".