711840680 has 16 divisors (see below), whose sum is σ = 1601641620. Its totient is φ = 284736256.

The previous prime is 711840667. The next prime is 711840697. The reversal of 711840680 is 86048117.

It can be written as a sum of positive squares in 2 ways, for example, as 708943876 + 2896804 = 26626^2 + 1702^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 711840680.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8897969 + ... + 8898048.

Almost surely, 2^711840680 is an apocalyptic number.

It is an amenable number.

711840680 is an abundant number, since it is smaller than the sum of its proper divisors (889800940).

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

711840680 is a wasteful number, since it uses less digits than its factorization.

711840680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17796028 (or 17796024 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 711840680 is about 26680.3425765113. The cubic root of 711840680 is about 892.8824108537.

Adding to 711840680 its reverse (86048117), we get a palindrome (797888797).

The spelling of 711840680 in words is "seven hundred eleven million, eight hundred forty thousand, six hundred eighty".