722712 has 16 divisors (see below), whose sum is σ = 1806840. Its totient is φ = 240896.

The previous prime is 722669. The next prime is 722713. The reversal of 722712 is 217227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15033 + ... + 15080.

2⁷²²⁷¹² is an apocalyptic number.

It is an amenable number.

722712 is an abundant number, since it is smaller than the sum of its proper divisors (1084128).

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

722712 is a wasteful number, since it uses less digits than its factorization.

722712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30122 (or 30118 counting only the distinct ones).

The product of its digits is 392, while the sum is 21.

The square root of 722712 is about 850.1246967357. The cubic root of 722712 is about 89.7404869871.

Adding to 722712 its reverse (217227), we get a palindrome (939939).

The spelling of 722712 in words is "seven hundred twenty-two thousand, seven hundred twelve", and thus it is an iban number.