2576891 has 4 divisors (see below), whose sum is σ = 2639784. Its totient is φ = 2514000.

The previous prime is 2576879. The next prime is 2576909. The reversal of 2576891 is 1986752.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2576891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2576801) 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, 31385 + ... + 31466.

It is an arithmetic number, because the mean of its divisors is an integer number (659946).

2^2576891 is an apocalyptic number.

2576891 is a deficient number, since it is larger than the sum of its proper divisors (62893).

2576891 is an equidigital number, since it uses as much as digits as its factorization.

2576891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62892.

The product of its digits is 30240, while the sum is 38.

The square root of 2576891 is about 1605.2697592617. The cubic root of 2576891 is about 137.0982831436.

The spelling of 2576891 in words is "two million, five hundred seventy-six thousand, eight hundred ninety-one".