6611864 has 48 divisors (see below), whose sum is σ = 14651280. Its totient is φ = 2788800.

The previous prime is 6611849. The next prime is 6611873. The reversal of 6611864 is 4681166.

It is a happy number.

Its product of digits (6912) is a multiple of the sum of its prime factors (288).

It is a self number, because there is not a number n which added to its sum of digits gives 6611864.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 39509 + ... + 39675.

It is an arithmetic number, because the mean of its divisors is an integer number (305235).

Almost surely, 2^6611864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6611864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7325640).

6611864 is an abundant number, since it is smaller than the sum of its proper divisors (8039416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6611864 is a wasteful number, since it uses less digits than its factorization.

6611864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 277 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 6611864 is about 2571.3545068699. The cubic root of 6611864 is about 187.6900733270.

The spelling of 6611864 in words is "six million, six hundred eleven thousand, eight hundred sixty-four".