7111864 has 8 divisors (see below), whose sum is σ = 13334760. Its totient is φ = 3555928.

The previous prime is 7111861. The next prime is 7111877. The reversal of 7111864 is 4681117.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7111861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444484 + ... + 444499.

It is an arithmetic number, because the mean of its divisors is an integer number (1666845).

Almost surely, 2^7111864 is an apocalyptic number.

It is an amenable number.

7111864 is a deficient number, since it is larger than the sum of its proper divisors (6222896).

7111864 is a wasteful number, since it uses less digits than its factorization.

7111864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888989 (or 888985 counting only the distinct ones).

The product of its digits is 1344, while the sum is 28.

The square root of 7111864 is about 2666.8078295970. The cubic root of 7111864 is about 192.3067290536.

It can be divided in two parts, 71 and 11864, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 7111864 in words is "seven million, one hundred eleven thousand, eight hundred sixty-four".