2991266 has 4 divisors (see below), whose sum is σ = 4486902. Its totient is φ = 1495632.

The previous prime is 2991253. The next prime is 2991277. The reversal of 2991266 is 6621992.

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., 2819041 + 172225 = 1679^2 + 415^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747815 + ... + 747818.

2^2991266 is an apocalyptic number.

2991266 is a deficient number, since it is larger than the sum of its proper divisors (1495636).

2991266 is a wasteful number, since it uses less digits than its factorization.

2991266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495635.

The product of its digits is 11664, while the sum is 35.

The square root of 2991266 is about 1729.5276811893. The cubic root of 2991266 is about 144.0848586767.

The spelling of 2991266 in words is "two million, nine hundred ninety-one thousand, two hundred sixty-six".