713640 has 64 divisors (see below), whose sum is σ = 2260800. Its totient is φ = 179712.

The previous prime is 713627. The next prime is 713653. The reversal of 713640 is 46317.

713640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (713627) and next prime (713653).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 713640.

It is an unprimeable number.

713640 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 15 ways as a sum of consecutive naturals, for example, 2124 + ... + 2436.

It is an arithmetic number, because the mean of its divisors is an integer number (35325).

2⁷¹³⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 713640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130400).

713640 is an abundant number, since it is smaller than the sum of its proper divisors (1547160).

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

713640 is a wasteful number, since it uses less digits than its factorization.

713640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 713640 is about 844.7721586321. The cubic root of 713640 is about 89.3634090956.

Adding to 713640 its reverse (46317), we get a palindrome (759957).

The spelling of 713640 in words is "seven hundred thirteen thousand, six hundred forty".