712668 has 24 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 215920.

The previous prime is 712651. The next prime is 712669. The reversal of 712668 is 866217.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712669) by changing a digit.

712668 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, 2568 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2⁷¹²⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

712668 is an abundant number, since it is smaller than the sum of its proper divisors (1101732).

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

712668 is a wasteful number, since it uses less digits than its factorization.

712668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417 (or 5415 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 712668 is about 844.1966595527. The cubic root of 712668 is about 89.3228187422.

The spelling of 712668 in words is "seven hundred twelve thousand, six hundred sixty-eight".