1668275 has 12 divisors (see below), whose sum is σ = 2364432. Its totient is φ = 1143840.

The previous prime is 1668253. The next prime is 1668299. The reversal of 1668275 is 5728661.

It is not a de Polignac number, because 1668275 - 2⁶ = 1668211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4592 + ... + 4941.

It is an arithmetic number, because the mean of its divisors is an integer number (197036).

2^1668275 is an apocalyptic number.

1668275 is a deficient number, since it is larger than the sum of its proper divisors (696157).

1668275 is an equidigital number, since it uses as much as digits as its factorization.

1668275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9550 (or 9545 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 1668275 is about 1291.6172033540. The cubic root of 1668275 is about 118.6012356890.

The spelling of 1668275 in words is "one million, six hundred sixty-eight thousand, two hundred seventy-five".