711280 has 40 divisors (see below), whose sum is σ = 1754352. Its totient is φ = 267264.

The previous prime is 711259. The next prime is 711287. The reversal of 711280 is 82117.

711280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099 + ... + 1621.

2⁷¹¹²⁸⁰ 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 711280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877176).

711280 is an abundant number, since it is smaller than the sum of its proper divisors (1043072).

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

711280 is a wasteful number, since it uses less digits than its factorization.

711280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 711280 is about 843.3741755591. The cubic root of 711280 is about 89.2647923550.

Adding to 711280 its reverse (82117), we get a palindrome (793397).

The spelling of 711280 in words is "seven hundred eleven thousand, two hundred eighty".