1676666 has 8 divisors (see below), whose sum is σ = 2596224. Its totient is φ = 811260.

The previous prime is 1676663. The next prime is 1676687. The reversal of 1676666 is 6666761.

It is a happy number.

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

It is a super-2 number, since 2×1676666² = 5622417751112, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1676663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13460 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (324528).

2^1676666 is an apocalyptic number.

1676666 is a deficient number, since it is larger than the sum of its proper divisors (919558).

1676666 is a wasteful number, since it uses less digits than its factorization.

1676666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27076.

The product of its digits is 54432, while the sum is 38.

The square root of 1676666 is about 1294.8613825425. The cubic root of 1676666 is about 118.7997479466.

The spelling of 1676666 in words is "one million, six hundred seventy-six thousand, six hundred sixty-six".