712660 has 24 divisors (see below), whose sum is σ = 1612296. Its totient is φ = 263040.

The previous prime is 712651. The next prime is 712669. The reversal of 712660 is 66217.

It is an interprime number because it is at equal distance from previous prime (712651) and next prime (712669).

It can be written as a sum of positive squares in 4 ways, for example, as 324 + 712336 = 18^2 + 844^2 .

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111 + ... + 1630.

It is an arithmetic number, because the mean of its divisors is an integer number (67179).

2⁷¹²⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

712660 is an abundant number, since it is smaller than the sum of its proper divisors (899636).

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

712660 is a wasteful number, since it uses less digits than its factorization.

712660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763 (or 2761 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 712660 is about 844.1919213070. The cubic root of 712660 is about 89.3224845121.

Adding to 712660 its reverse (66217), we get a palindrome (778877).

The spelling of 712660 in words is "seven hundred twelve thousand, six hundred sixty".