1672171 has 16 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 1434240.

The previous prime is 1672129. The next prime is 1672199. The reversal of 1672171 is 1712761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9930 + ... + 10096.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^1672171 is an apocalyptic number.

1672171 is a deficient number, since it is larger than the sum of its proper divisors (263189).

1672171 is a wasteful number, since it uses less digits than its factorization.

1672171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234.

The product of its digits is 588, while the sum is 25.

The square root of 1672171 is about 1293.1245106331. The cubic root of 1672171 is about 118.6934889011.

The spelling of 1672171 in words is "one million, six hundred seventy-two thousand, one hundred seventy-one".