747320 has 64 divisors (see below), whose sum is σ = 2047680. Its totient is φ = 239616.

The previous prime is 747319. The next prime is 747323. The reversal of 747320 is 23747.

747320 is nontrivially palindromic in base 13.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747323) by changing a digit.

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, 4682 + ... + 4838.

It is an arithmetic number, because the mean of its divisors is an integer number (31995).

2⁷⁴⁷³²⁰ is an apocalyptic number.

747320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023840).

747320 is an abundant number, since it is smaller than the sum of its proper divisors (1300360).

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

747320 is a wasteful number, since it uses less digits than its factorization.

747320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 747320 is about 864.4767203343. The cubic root of 747320 is about 90.7476808571.

The spelling of 747320 in words is "seven hundred forty-seven thousand, three hundred twenty", and thus it is an iban number.