747222 has 16 divisors (see below), whose sum is σ = 1708032. Its totient is φ = 213480.

The previous prime is 747203. The next prime is 747223. The reversal of 747222 is 222747.

It is a junction number, because it is equal to n+sod(n) for n = 747192 and 747201.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 747222.

It is not an unprimeable number, because it can be changed into a prime (747223) by changing a digit.

747222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8854 + ... + 8937.

It is an arithmetic number, because the mean of its divisors is an integer number (106752).

2⁷⁴⁷²²² is an apocalyptic number.

747222 is an abundant number, since it is smaller than the sum of its proper divisors (960810).

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

747222 is a wasteful number, since it uses less digits than its factorization.

747222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17803.

The product of its digits is 1568, while the sum is 24.

The square root of 747222 is about 864.4200367877. The cubic root of 747222 is about 90.7437139435.

Adding to 747222 its reverse (222747), we get a palindrome (969969).

It can be divided in two parts, 747 and 222, that added together give a palindrome (969).

The spelling of 747222 in words is "seven hundred forty-seven thousand, two hundred twenty-two", and thus it is an iban number.