712328 has 8 divisors (see below), whose sum is σ = 1335630. Its totient is φ = 356160.

The previous prime is 712321. The next prime is 712331. The reversal of 712328 is 823217.

712328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 708964 + 3364 = 842^2 + 58^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×712328² = 1014822359168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712321) by changing a digit.

712328 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 as a sum of consecutive naturals, namely, 44513 + ... + 44528.

2⁷¹²³²⁸ is an apocalyptic number.

It is an amenable number.

712328 is a deficient number, since it is larger than the sum of its proper divisors (623302).

712328 is a wasteful number, since it uses less digits than its factorization.

712328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89047 (or 89043 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 712328 is about 843.9952606502. The cubic root of 712328 is about 89.3086117579.

Subtracting 712328 from its reverse (823217), we obtain a square (110889 = 333²).

The spelling of 712328 in words is "seven hundred twelve thousand, three hundred twenty-eight".