1673671 has 8 divisors (see below), whose sum is σ = 1720944. Its totient is φ = 1627200.

The previous prime is 1673669. The next prime is 1673681. The reversal of 1673671 is 1763761.

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

It is a cyclic number.

It is not a de Polignac number, because 1673671 - 2¹ = 1673669 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 (1673681) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7260 + ... + 7486.

It is an arithmetic number, because the mean of its divisors is an integer number (215118).

2^1673671 is an apocalyptic number.

1673671 is a deficient number, since it is larger than the sum of its proper divisors (47273).

1673671 is a wasteful number, since it uses less digits than its factorization.

1673671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 5292, while the sum is 31.

The square root of 1673671 is about 1293.7043711760. The cubic root of 1673671 is about 118.7289691288.

It can be divided in two parts, 16736 and 71, that added together give a 5-th power (16807 = 7⁵).

The spelling of 1673671 in words is "one million, six hundred seventy-three thousand, six hundred seventy-one".