716776720 has 80 divisors (see below), whose sum is σ = 1845292608. Its totient is φ = 256734720.

The previous prime is 716776693. The next prime is 716776727. The reversal of 716776720 is 27677617.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (716776727) 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, 52882 + ... + 65038.

Almost surely, 2^716776720 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 716776720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922646304).

716776720 is an abundant number, since it is smaller than the sum of its proper divisors (1128515888).

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

716776720 is a wasteful number, since it uses less digits than its factorization.

716776720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248 (or 12242 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 43.

The square root of 716776720 is about 26772.6860811537. The cubic root of 716776720 is about 894.9414649149.

The spelling of 716776720 in words is "seven hundred sixteen million, seven hundred seventy-six thousand, seven hundred twenty".