5439864 has 64 divisors (see below), whose sum is σ = 14688000. Its totient is φ = 1672704.

The previous prime is 5439853. The next prime is 5439869. The reversal of 5439864 is 4689345.

Its product of digits (103680) is a multiple of the sum of its prime divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5439869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27237 + ... + 27435.

It is an arithmetic number, because the mean of its divisors is an integer number (229500).

Almost surely, 2^5439864 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 5439864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7344000).

5439864 is an abundant number, since it is smaller than the sum of its proper divisors (9248136).

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

5439864 is a wasteful number, since it uses less digits than its factorization.

5439864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 288 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 5439864 is about 2332.3516029964. The cubic root of 5439864 is about 175.8717212642.

The spelling of 5439864 in words is "five million, four hundred thirty-nine thousand, eight hundred sixty-four".