2991896 has 8 divisors (see below), whose sum is σ = 5609820. Its totient is φ = 1495944.

The previous prime is 2991889. The next prime is 2991899. The reversal of 2991896 is 6981992.

2991896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991899) 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 as a sum of consecutive naturals, namely, 186986 + ... + 187001.

2^2991896 is an apocalyptic number.

It is an amenable number.

2991896 is a deficient number, since it is larger than the sum of its proper divisors (2617924).

2991896 is a wasteful number, since it uses less digits than its factorization.

2991896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373993 (or 373989 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 2991896 is about 1729.7098022501. The cubic root of 2991896 is about 144.0949733560.

The spelling of 2991896 in words is "two million, nine hundred ninety-one thousand, eight hundred ninety-six".