2891265 has 16 divisors (see below), whose sum is σ = 4982208. Its totient is φ = 1423296.

The previous prime is 2891263. The next prime is 2891281. The reversal of 2891265 is 5621982.

It is not a de Polignac number, because 2891265 - 2¹ = 2891263 is a prime.

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, 7219 + ... + 7608.

It is an arithmetic number, because the mean of its divisors is an integer number (311388).

2^2891265 is an apocalyptic number.

It is an amenable number.

2891265 is a deficient number, since it is larger than the sum of its proper divisors (2090943).

2891265 is a wasteful number, since it uses less digits than its factorization.

2891265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14848.

The product of its digits is 8640, while the sum is 33.

The square root of 2891265 is about 1700.3720181184. The cubic root of 2891265 is about 142.4609927090.

The spelling of 2891265 in words is "two million, eight hundred ninety-one thousand, two hundred sixty-five".