2991834 has 24 divisors (see below), whose sum is σ = 6514560. Its totient is φ = 992328.

The previous prime is 2991803. The next prime is 2991853. The reversal of 2991834 is 4381992.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6007 + ... + 6485.

It is an arithmetic number, because the mean of its divisors is an integer number (271440).

2^2991834 is an apocalyptic number.

2991834 is an abundant number, since it is smaller than the sum of its proper divisors (3522726).

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

2991834 is a wasteful number, since it uses less digits than its factorization.

2991834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 831 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 2991834 is about 1729.6918800758. The cubic root of 2991834 is about 144.0939780061.

The spelling of 2991834 in words is "two million, nine hundred ninety-one thousand, eight hundred thirty-four".