3666994 has 8 divisors (see below), whose sum is σ = 5531760. Its totient is φ = 1823076.

The previous prime is 3666991. The next prime is 3667003. The reversal of 3666994 is 4996663.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3666994.

It is not an unprimeable number, because it can be changed into a prime (3666991) 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 in 3 ways as a sum of consecutive naturals, for example, 4764 + ... + 5479.

It is an arithmetic number, because the mean of its divisors is an integer number (691470).

Almost surely, 2^3666994 is an apocalyptic number.

3666994 is a deficient number, since it is larger than the sum of its proper divisors (1864766).

3666994 is a wasteful number, since it uses less digits than its factorization.

3666994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10424.

The product of its digits is 209952, while the sum is 43.

The square root of 3666994 is about 1914.9396857343. The cubic root of 3666994 is about 154.2067555189.

It can be divided in two parts, 36669 and 94, that added together give a palindrome (36763).

The spelling of 3666994 in words is "three million, six hundred sixty-six thousand, nine hundred ninety-four".