1672166 has 8 divisors (see below), whose sum is σ = 2561760. Its totient is φ = 818248.

The previous prime is 1672129. The next prime is 1672199. The reversal of 1672166 is 6612761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1672166² = 5592278263112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8801 + ... + 8988.

It is an arithmetic number, because the mean of its divisors is an integer number (320220).

2^1672166 is an apocalyptic number.

1672166 is a deficient number, since it is larger than the sum of its proper divisors (889594).

1672166 is a wasteful number, since it uses less digits than its factorization.

1672166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17838.

The product of its digits is 3024, while the sum is 29.

The square root of 1672166 is about 1293.1225773298. The cubic root of 1672166 is about 118.6933705982.

The spelling of 1672166 in words is "one million, six hundred seventy-two thousand, one hundred sixty-six".