1672173 has 6 divisors (see below), whose sum is σ = 2415374. Its totient is φ = 1114776.

The previous prime is 1672129. The next prime is 1672199. The reversal of 1672173 is 3712761.

It can be written as a sum of positive squares in only one way, i.e., 1671849 + 324 = 1293^2 + 18^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1672173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92890 + ... + 92907.

2^1672173 is an apocalyptic number.

It is an amenable number.

1672173 is a deficient number, since it is larger than the sum of its proper divisors (743201).

1672173 is a wasteful number, since it uses less digits than its factorization.

1672173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185803 (or 185800 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 1672173 is about 1293.1252839536. The cubic root of 1672173 is about 118.6935362222.

The spelling of 1672173 in words is "one million, six hundred seventy-two thousand, one hundred seventy-three".