716840 has 16 divisors (see below), whose sum is σ = 1612980. Its totient is φ = 286720.

The previous prime is 716827. The next prime is 716857. The reversal of 716840 is 48617.

It can be written as a sum of positive squares in 2 ways, for example, as 605284 + 111556 = 778^2 + 334^2 .

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, 8921 + ... + 9000.

2⁷¹⁶⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

716840 is an abundant number, since it is smaller than the sum of its proper divisors (896140).

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

716840 is a wasteful number, since it uses less digits than its factorization.

716840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17932 (or 17928 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 716840 is about 846.6640419907. The cubic root of 716840 is about 89.4967800512.

The spelling of 716840 in words is "seven hundred sixteen thousand, eight hundred forty".