2872111 has 4 divisors (see below), whose sum is σ = 3133224. Its totient is φ = 2611000.

The previous prime is 2872109. The next prime is 2872139. The reversal of 2872111 is 1112782.

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 2872111 - 2¹ = 2872109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872141) 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, 130540 + ... + 130561.

It is an arithmetic number, because the mean of its divisors is an integer number (783306).

2^2872111 is an apocalyptic number.

2872111 is a deficient number, since it is larger than the sum of its proper divisors (261113).

2872111 is a wasteful number, since it uses less digits than its factorization.

2872111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261112.

The product of its digits is 224, while the sum is 22.

The square root of 2872111 is about 1694.7303620340. The cubic root of 2872111 is about 142.1457044406.

Adding to 2872111 its reverse (1112782), we get a palindrome (3984893).

The spelling of 2872111 in words is "two million, eight hundred seventy-two thousand, one hundred eleven".