3166639 has 4 divisors (see below), whose sum is σ = 3619024. Its totient is φ = 2714256.

The previous prime is 3166637. The next prime is 3166643. The reversal of 3166639 is 9366613.

It is a happy number.

3166639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9366613 = 1487 ⋅6299.

It is a cyclic number.

It is not a de Polignac number, because 3166639 - 2¹ = 3166637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3166637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226182 + ... + 226195.

It is an arithmetic number, because the mean of its divisors is an integer number (904756).

Almost surely, 2^3166639 is an apocalyptic number.

3166639 is a deficient number, since it is larger than the sum of its proper divisors (452385).

3166639 is an equidigital number, since it uses as much as digits as its factorization.

3166639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452384.

The product of its digits is 17496, while the sum is 34.

The square root of 3166639 is about 1779.5052683260. The cubic root of 3166639 is about 146.8473742519.

The spelling of 3166639 in words is "three million, one hundred sixty-six thousand, six hundred thirty-nine".