710721 has 16 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 430560.

The previous prime is 710713. The next prime is 710777. The reversal of 710721 is 127017.

It is not a de Polignac number, because 710721 - 2³ = 710713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 710694 and 710703.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 710721.

It is not an unprimeable number, because it can be changed into a prime (710791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900 + ... + 1493.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2⁷¹⁰⁷²¹ is an apocalyptic number.

It is an amenable number.

710721 is a deficient number, since it is larger than the sum of its proper divisors (438399).

710721 is a wasteful number, since it uses less digits than its factorization.

710721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 18.

The square root of 710721 is about 843.0427035447. The cubic root of 710721 is about 89.2414016150.

Adding to 710721 its reverse (127017), we get a palindrome (837738).

It can be divided in two parts, 710 and 721, that added together give a triangular number (1431 = T₅₃).

The spelling of 710721 in words is "seven hundred ten thousand, seven hundred twenty-one", and thus it is an iban number.