2875891 has 4 divisors (see below), whose sum is σ = 2884392. Its totient is φ = 2867392.

The previous prime is 2875871. The next prime is 2875903. The reversal of 2875891 is 1985782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1985782 = 2 ⋅992891.

It is a cyclic number.

It is not a de Polignac number, because 2875891 - 2¹³ = 2867699 is a prime.

It is a Duffinian number.

2875891 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2875811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3721 + ... + 4426.

It is an arithmetic number, because the mean of its divisors is an integer number (721098).

2^2875891 is an apocalyptic number.

2875891 is a deficient number, since it is larger than the sum of its proper divisors (8501).

2875891 is an equidigital number, since it uses as much as digits as its factorization.

2875891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500.

The product of its digits is 40320, while the sum is 40.

The square root of 2875891 is about 1695.8452169936. The cubic root of 2875891 is about 142.2080366666.

The spelling of 2875891 in words is "two million, eight hundred seventy-five thousand, eight hundred ninety-one".