747306 has 40 divisors (see below), whose sum is σ = 1916640. Its totient is φ = 213192.

The previous prime is 747287. The next prime is 747319. The reversal of 747306 is 603747.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 747306.

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 19 ways as a sum of consecutive naturals, for example, 805 + ... + 1463.

It is an arithmetic number, because the mean of its divisors is an integer number (47916).

2⁷⁴⁷³⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958320).

747306 is an abundant number, since it is smaller than the sum of its proper divisors (1169334).

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

747306 is a wasteful number, since it uses less digits than its factorization.

747306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 747306 is about 864.4686229124. The cubic root of 747306 is about 90.7471141764.

The spelling of 747306 in words is "seven hundred forty-seven thousand, three hundred six".