711520 has 24 divisors (see below), whose sum is σ = 1681344. Its totient is φ = 284544.

The previous prime is 711517. The next prime is 711523. The reversal of 711520 is 25117.

711520 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 (711517) and next prime (711523).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 711494 and 711503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2064 + ... + 2383.

It is an arithmetic number, because the mean of its divisors is an integer number (70056).

2⁷¹¹⁵²⁰ is an apocalyptic number.

It is an amenable number.

711520 is an abundant number, since it is smaller than the sum of its proper divisors (969824).

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

711520 is a wasteful number, since it uses less digits than its factorization.

711520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 4454 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 711520 is about 843.5164491579. The cubic root of 711520 is about 89.2748311306.

Adding to 711520 its reverse (25117), we get a palindrome (736637).

The spelling of 711520 in words is "seven hundred eleven thousand, five hundred twenty".