1668064 has 12 divisors (see below), whose sum is σ = 3284064. Its totient is φ = 834016.

The previous prime is 1668061. The next prime is 1668083. The reversal of 1668064 is 4608661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668061) 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 as a sum of consecutive naturals, namely, 26032 + ... + 26095.

It is an arithmetic number, because the mean of its divisors is an integer number (273672).

2^1668064 is an apocalyptic number.

It is an amenable number.

1668064 is a deficient number, since it is larger than the sum of its proper divisors (1616000).

1668064 is an equidigital number, since it uses as much as digits as its factorization.

1668064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52137 (or 52129 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1668064 is about 1291.5355202239. The cubic root of 1668064 is about 118.5962353312.

The spelling of 1668064 in words is "one million, six hundred sixty-eight thousand, sixty-four".