2891163 has 16 divisors (see below), whose sum is σ = 4262400. Its totient is φ = 1728480.

The previous prime is 2891137. The next prime is 2891171. The reversal of 2891163 is 3611982.

It is not a de Polignac number, because 2891163 - 2¹² = 2887067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2891163.

It is not an unprimeable number, because it can be changed into a prime (2891263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (266400).

2^2891163 is an apocalyptic number.

2891163 is a deficient number, since it is larger than the sum of its proper divisors (1371237).

2891163 is a wasteful number, since it uses less digits than its factorization.

2891163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202.

The product of its digits is 2592, while the sum is 30.

The square root of 2891163 is about 1700.3420244174. The cubic root of 2891163 is about 142.4593174109.

The spelling of 2891163 in words is "two million, eight hundred ninety-one thousand, one hundred sixty-three".