747726 has 32 divisors (see below), whose sum is σ = 1800960. Its totient is φ = 202176.

The previous prime is 747713. The next prime is 747731. The reversal of 747726 is 627747.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

747726 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 15 ways as a sum of consecutive naturals, for example, 330 + ... + 1266.

It is an arithmetic number, because the mean of its divisors is an integer number (56280).

2⁷⁴⁷⁷²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (900480).

747726 is an abundant number, since it is smaller than the sum of its proper divisors (1053234).

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

747726 is a wasteful number, since it uses less digits than its factorization.

747726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its digits is 16464, while the sum is 33.

The square root of 747726 is about 864.7115125867. The cubic root of 747726 is about 90.7641115197.

It can be divided in two parts, 7477 and 26, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 747726 in words is "seven hundred forty-seven thousand, seven hundred twenty-six".