747224 has 32 divisors (see below), whose sum is σ = 1520640. Its totient is φ = 343200.

The previous prime is 747223. The next prime is 747239. The reversal of 747224 is 422747.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 747193 and 747202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747223) 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 7 ways as a sum of consecutive naturals, for example, 5639 + ... + 5769.

It is an arithmetic number, because the mean of its divisors is an integer number (47520).

2⁷⁴⁷²²⁴ is an apocalyptic number.

It is an amenable number.

747224 is an abundant number, since it is smaller than the sum of its proper divisors (773416).

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

747224 is a wasteful number, since it uses less digits than its factorization.

747224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 187 counting only the distinct ones).

The product of its digits is 3136, while the sum is 26.

The square root of 747224 is about 864.4211936319. The cubic root of 747224 is about 90.7437949044.

The spelling of 747224 in words is "seven hundred forty-seven thousand, two hundred twenty-four", and thus it is an iban number.