2991339 has 24 divisors (see below), whose sum is σ = 4785872. Its totient is φ = 1788480.

The previous prime is 2991299. The next prime is 2991353. The reversal of 2991339 is 9331992.

It is not a de Polignac number, because 2991339 - 2⁸ = 2991083 is a prime.

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 not an unprimeable number, because it can be changed into a prime (2991139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3984 + ... + 4674.

2^2991339 is an apocalyptic number.

2991339 is a deficient number, since it is larger than the sum of its proper divisors (1794533).

2991339 is a wasteful number, since it uses less digits than its factorization.

2991339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 744 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 2991339 is about 1729.5487850882. The cubic root of 2991339 is about 144.0860307678.

The spelling of 2991339 in words is "two million, nine hundred ninety-one thousand, three hundred thirty-nine".