1668485 has 32 divisors (see below), whose sum is σ = 2607360. Its totient is φ = 995328.

The previous prime is 1668481. The next prime is 1668503. The reversal of 1668485 is 5848661.

It is a cyclic number.

It is not a de Polignac number, because 1668485 - 2² = 1668481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668481) 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 31 ways as a sum of consecutive naturals, for example, 8549 + ... + 8741.

It is an arithmetic number, because the mean of its divisors is an integer number (81480).

2^1668485 is an apocalyptic number.

It is an amenable number.

1668485 is a deficient number, since it is larger than the sum of its proper divisors (938875).

1668485 is a wasteful number, since it uses less digits than its factorization.

1668485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237.

The product of its digits is 46080, while the sum is 38.

The square root of 1668485 is about 1291.6984942315. The cubic root of 1668485 is about 118.6062119298.

The spelling of 1668485 in words is "one million, six hundred sixty-eight thousand, four hundred eighty-five".