711943680 has 640 divisors, whose sum is σ = 2969809920. Its totient is φ = 141557760.

The previous prime is 711943651. The next prime is 711943693. The reversal of 711943680 is 86349117.

It is a tau number, because it is divible by the number of its divisors (640).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17364460 + ... + 17364500.

It is an arithmetic number, because the mean of its divisors is an integer number (4640328).

Almost surely, 2^711943680 is an apocalyptic number.

711943680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 711943680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484904960).

711943680 is an abundant number, since it is smaller than the sum of its proper divisors (2257866240).

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

711943680 is a wasteful number, since it uses less digits than its factorization.

711943680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 711943680 is about 26682.2727667641. The cubic root of 711943680 is about 892.9254740725.

The spelling of 711943680 in words is "seven hundred eleven million, nine hundred forty-three thousand, six hundred eighty".