1668795 has 8 divisors (see below), whose sum is σ = 2670096. Its totient is φ = 890016.

The previous prime is 1668791. The next prime is 1668803. The reversal of 1668795 is 5978661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1668795 - 2² = 1668791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1668791) 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, 55612 + ... + 55641.

It is an arithmetic number, because the mean of its divisors is an integer number (333762).

2^1668795 is an apocalyptic number.

1668795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1668795 is a deficient number, since it is larger than the sum of its proper divisors (1001301).

1668795 is a wasteful number, since it uses less digits than its factorization.

1668795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111261.

The product of its digits is 90720, while the sum is 42.

The square root of 1668795 is about 1291.8184857015. The cubic root of 1668795 is about 118.6135570461.

The spelling of 1668795 in words is "one million, six hundred sixty-eight thousand, seven hundred ninety-five".