716820 has 48 divisors (see below), whose sum is σ = 2163840. Its totient is φ = 176256.

The previous prime is 716819. The next prime is 716827. The reversal of 716820 is 28617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (45080).

2⁷¹⁶⁸²⁰ 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 716820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081920).

716820 is an abundant number, since it is smaller than the sum of its proper divisors (1447020).

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

716820 is a wasteful number, since it uses less digits than its factorization.

716820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 716820 is about 846.6522308481. The cubic root of 716820 is about 89.4959477166.

The spelling of 716820 in words is "seven hundred sixteen thousand, eight hundred twenty".