5178726 has 48 divisors (see below), whose sum is σ = 13388544. Its totient is φ = 1414512.

The previous prime is 5178709. The next prime is 5178731. The reversal of 5178726 is 6278715.

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 23 ways as a sum of consecutive naturals, for example, 2005 + ... + 3791.

It is an arithmetic number, because the mean of its divisors is an integer number (278928).

Almost surely, 2^5178726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5178726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6694272).

5178726 is an abundant number, since it is smaller than the sum of its proper divisors (8209818).

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

5178726 is a wasteful number, since it uses less digits than its factorization.

5178726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1822 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 5178726 is about 2275.6814364054. The cubic root of 5178726 is about 173.0112369771.

The spelling of 5178726 in words is "five million, one hundred seventy-eight thousand, seven hundred twenty-six".