1666676 has 12 divisors (see below), whose sum is σ = 3181920. Its totient is φ = 757560.

The previous prime is 1666657. The next prime is 1666711. The reversal of 1666676 is 6766661.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18896 + ... + 18983.

It is an arithmetic number, because the mean of its divisors is an integer number (265160).

2^1666676 is an apocalyptic number.

It is an amenable number.

1666676 is a deficient number, since it is larger than the sum of its proper divisors (1515244).

1666676 is a wasteful number, since it uses less digits than its factorization.

1666676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37894 (or 37892 counting only the distinct ones).

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

The square root of 1666676 is about 1290.9980635152. The cubic root of 1666676 is about 118.5633314671.

The spelling of 1666676 in words is "one million, six hundred sixty-six thousand, six hundred seventy-six".