716540 has 24 divisors (see below), whose sum is σ = 1642032. Its totient is φ = 260480.

The previous prime is 716531. The next prime is 716543. The reversal of 716540 is 45617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716543) by changing a digit.

716540 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1409 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (68418).

2⁷¹⁶⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

716540 is an abundant number, since it is smaller than the sum of its proper divisors (925492).

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

716540 is a wasteful number, since it uses less digits than its factorization.

716540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277 (or 3275 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 716540 is about 846.4868575471. The cubic root of 716540 is about 89.4842934060.

The spelling of 716540 in words is "seven hundred sixteen thousand, five hundred forty".