3147666 has 16 divisors (see below), whose sum is σ = 6329664. Its totient is φ = 1043504.

The previous prime is 3147659. The next prime is 3147679. The reversal of 3147666 is 6667413.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150 + ... + 2513.

It is an arithmetic number, because the mean of its divisors is an integer number (395604).

Almost surely, 2^3147666 is an apocalyptic number.

3147666 is an abundant number, since it is smaller than the sum of its proper divisors (3181998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3147666 is a wasteful number, since it uses less digits than its factorization.

3147666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865.

The product of its digits is 18144, while the sum is 33.

The square root of 3147666 is about 1774.1662830750. The cubic root of 3147666 is about 146.5535066078.

It can be divided in two parts, 314766 and 6, that multiplied together give a triangular number (1888596 = T₁₉₄₃).

The spelling of 3147666 in words is "three million, one hundred forty-seven thousand, six hundred sixty-six".