1673665 has 8 divisors (see below), whose sum is σ = 2295360. Its totient is φ = 1147632.

The previous prime is 1673663. The next prime is 1673669. The reversal of 1673665 is 5663761.

It is a happy number.

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 1673665 - 2¹ = 1673663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1673665.

It is not an unprimeable number, because it can be changed into a prime (1673663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23875 + ... + 23944.

It is an arithmetic number, because the mean of its divisors is an integer number (286920).

2^1673665 is an apocalyptic number.

It is an amenable number.

1673665 is a deficient number, since it is larger than the sum of its proper divisors (621695).

1673665 is an equidigital number, since it uses as much as digits as its factorization.

1673665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47831.

The product of its digits is 22680, while the sum is 34.

The square root of 1673665 is about 1293.7020522516. The cubic root of 1673665 is about 118.7288272501.

The spelling of 1673665 in words is "one million, six hundred seventy-three thousand, six hundred sixty-five".