7112889 has 27 divisors (see below), whose sum is σ = 12046437. Its totient is φ = 4032504.

The previous prime is 7112887. The next prime is 7112909. The reversal of 7112889 is 9882117.

The square root of 7112889 is 2667.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 7112889 - 2¹ = 7112887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7112887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 55944 + ... + 56070.

Almost surely, 2^7112889 is an apocalyptic number.

7112889 is the 2667-th square number.

7112889 is the 1334-th centered octagonal number.

It is an amenable number.

7112889 is a deficient number, since it is larger than the sum of its proper divisors (4933548).

7112889 is a wasteful number, since it uses less digits than its factorization.

7112889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 137 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The cubic root of 7112889 is about 192.3159673690.

Multiplying 7112889 by its sum of digits (36), we get a square (256064004 = 16002²).

It can be divided in two parts, 71128 and 89, that added together give a palindrome (71217).

The spelling of 7112889 in words is "seven million, one hundred twelve thousand, eight hundred eighty-nine".