2991043 has 8 divisors (see below), whose sum is σ = 3351600. Its totient is φ = 2645280.

The previous prime is 2991041. The next prime is 2991047. The reversal of 2991043 is 3401992.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2991043 - 2¹ = 2991041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2991041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3268 + ... + 4081.

It is an arithmetic number, because the mean of its divisors is an integer number (418950).

2^2991043 is an apocalyptic number.

2991043 is a deficient number, since it is larger than the sum of its proper divisors (360557).

2991043 is a wasteful number, since it uses less digits than its factorization.

2991043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7397.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 2991043 is about 1729.4632115197. The cubic root of 2991043 is about 144.0812780610.

The spelling of 2991043 in words is "two million, nine hundred ninety-one thousand, forty-three".