2943666 has 24 divisors (see below), whose sum is σ = 6958224. Its totient is φ = 891960.

The previous prime is 2943653. The next prime is 2943671. The reversal of 2943666 is 6663492.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2²¹ + 9² + 4³ + 3⁸ + 6⁷ + 6⁷ + 6⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 2943666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7236 + ... + 7631.

It is an arithmetic number, because the mean of its divisors is an integer number (289926).

2^2943666 is an apocalyptic number.

2943666 is an abundant number, since it is smaller than the sum of its proper divisors (4014558).

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

2943666 is a wasteful number, since it uses less digits than its factorization.

2943666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14886 (or 14883 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 2943666 is about 1715.7115142121. The cubic root of 2943666 is about 143.3164946266.

The spelling of 2943666 in words is "two million, nine hundred forty-three thousand, six hundred sixty-six".