2949991 has 16 divisors (see below), whose sum is σ = 3419136. Its totient is φ = 2520000.

The previous prime is 2949953. The next prime is 2950001. The reversal of 2949991 is 1999492.

2949991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2949991 - 2¹⁵ = 2917223 is a prime.

It is a deceptive number, since it divides R_2949990.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2949901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13876 + ... + 14086.

It is an arithmetic number, because the mean of its divisors is an integer number (213696).

2^2949991 is an apocalyptic number.

2949991 is a deficient number, since it is larger than the sum of its proper divisors (469145).

2949991 is a wasteful number, since it uses less digits than its factorization.

2949991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294.

The product of its digits is 52488, while the sum is 43.

The square root of 2949991 is about 1717.5537837285. The cubic root of 2949991 is about 143.4190683515.

The spelling of 2949991 in words is "two million, nine hundred forty-nine thousand, nine hundred ninety-one".