1668088 has 8 divisors (see below), whose sum is σ = 3127680. Its totient is φ = 834040.

The previous prime is 1668083. The next prime is 1668089. The reversal of 1668088 is 8808661.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668083) by changing a digit.

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, 104248 + ... + 104263.

It is an arithmetic number, because the mean of its divisors is an integer number (390960).

2^1668088 is an apocalyptic number.

It is an amenable number.

1668088 is a deficient number, since it is larger than the sum of its proper divisors (1459592).

1668088 is a wasteful number, since it uses less digits than its factorization.

1668088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208517 (or 208513 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1668088 is about 1291.5448114564. The cubic root of 1668088 is about 118.5968041135.

Subtracting from 1668088 its sum of digits (37), we obtain a triangular number (1668051 = T₁₈₂₆).

The spelling of 1668088 in words is "one million, six hundred sixty-eight thousand, eighty-eight".