2891841 has 8 divisors (see below), whose sum is σ = 3871104. Its totient is φ = 1920240.

The previous prime is 2891831. The next prime is 2891891. The reversal of 2891841 is 1481982.

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

It is not a de Polignac number, because 2891841 - 2¹⁹ = 2367553 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2891841 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2891821) 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, 966 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (483888).

2^2891841 is an apocalyptic number.

It is an amenable number.

2891841 is a deficient number, since it is larger than the sum of its proper divisors (979263).

2891841 is a wasteful number, since it uses less digits than its factorization.

2891841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831.

The product of its digits is 4608, while the sum is 33.

The square root of 2891841 is about 1700.5413843832. The cubic root of 2891841 is about 142.4704524764.

The spelling of 2891841 in words is "two million, eight hundred ninety-one thousand, eight hundred forty-one".