5172786 has 24 divisors (see below), whose sum is σ = 11273340. Its totient is φ = 1714176.

The previous prime is 5172767. The next prime is 5172787. The reversal of 5172786 is 6872715.

It can be written as a sum of positive squares in 2 ways, for example, as 4756761 + 416025 = 2181^2 + 645^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5172786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2730 + ... + 4218.

Almost surely, 2^5172786 is an apocalyptic number.

5172786 is an abundant number, since it is smaller than the sum of its proper divisors (6100554).

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

5172786 is a wasteful number, since it uses less digits than its factorization.

5172786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690 (or 1687 counting only the distinct ones).

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

The square root of 5172786 is about 2274.3759583675. The cubic root of 5172786 is about 172.9450636932.

The spelling of 5172786 in words is "five million, one hundred seventy-two thousand, seven hundred eighty-six".