1668076 has 6 divisors (see below), whose sum is σ = 2919140. Its totient is φ = 834036.

The previous prime is 1668061. The next prime is 1668083. The reversal of 1668076 is 6708661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208506 + ... + 208513.

2^1668076 is an apocalyptic number.

It is an amenable number.

1668076 is a deficient number, since it is larger than the sum of its proper divisors (1251064).

1668076 is a wasteful number, since it uses less digits than its factorization.

1668076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417023 (or 417021 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1668076 is about 1291.5401658485. The cubic root of 1668076 is about 118.5965197230.

The spelling of 1668076 in words is "one million, six hundred sixty-eight thousand, seventy-six".