2993666 has 24 divisors (see below), whose sum is σ = 5158404. Its totient is φ = 1297920.

The previous prime is 2993663. The next prime is 2993671. The reversal of 2993666 is 6663992.

It can be written as a sum of positive squares in 6 ways, for example, as 525625 + 2468041 = 725^2 + 1571^2 .

It is a super-2 number, since 2×2993666² = 17924072239112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2993663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5486 + ... + 6006.

2^2993666 is an apocalyptic number.

2993666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2993666 is a deficient number, since it is larger than the sum of its proper divisors (2164738).

2993666 is a wasteful number, since it uses less digits than its factorization.

2993666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 553 counting only the distinct ones).

The product of its digits is 104976, while the sum is 41.

The square root of 2993666 is about 1730.2213731196. The cubic root of 2993666 is about 144.1233831920.

The spelling of 2993666 in words is "two million, nine hundred ninety-three thousand, six hundred sixty-six".