2527891 has 4 divisors (see below), whose sum is σ = 2544784. Its totient is φ = 2511000.

The previous prime is 2527823. The next prime is 2527913. The reversal of 2527891 is 1987252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2527891 - 2¹⁵ = 2495123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2527391) 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, 8220 + ... + 8521.

It is an arithmetic number, because the mean of its divisors is an integer number (636196).

2^2527891 is an apocalyptic number.

2527891 is a deficient number, since it is larger than the sum of its proper divisors (16893).

2527891 is a wasteful number, since it uses less digits than its factorization.

2527891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892.

The product of its digits is 10080, while the sum is 34.

The square root of 2527891 is about 1589.9342753712. The cubic root of 2527891 is about 136.2237342406.

The spelling of 2527891 in words is "two million, five hundred twenty-seven thousand, eight hundred ninety-one".