2996666 has 4 divisors (see below), whose sum is σ = 4495002. Its totient is φ = 1498332.

The previous prime is 2996663. The next prime is 2996671. The reversal of 2996666 is 6666992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2989441 + 7225 = 1729^2 + 85^2 .

It is not an unprimeable number, because it can be changed into a prime (2996663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749165 + ... + 749168.

2^2996666 is an apocalyptic number.

2996666 is a deficient number, since it is larger than the sum of its proper divisors (1498336).

2996666 is a wasteful number, since it uses less digits than its factorization.

2996666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498335.

The product of its digits is 209952, while the sum is 44.

The square root of 2996666 is about 1731.0880971227. The cubic root of 2996666 is about 144.1715098926.

The spelling of 2996666 in words is "two million, nine hundred ninety-six thousand, six hundred sixty-six".