716983821 has 12 divisors (see below), whose sum is σ = 1035893248. Its totient is φ = 477873864.

The previous prime is 716983819. The next prime is 716983859. The reversal of 716983821 is 128389617.

716983821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 716983821 - 2¹ = 716983819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716983801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47796 + ... + 60978.

Almost surely, 2^716983821 is an apocalyptic number.

It is an amenable number.

716983821 is a deficient number, since it is larger than the sum of its proper divisors (318909427).

716983821 is a wasteful number, since it uses less digits than its factorization.

716983821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19232 (or 19229 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 716983821 is about 26776.5535683740. The cubic root of 716983821 is about 895.0276495521.

The spelling of 716983821 in words is "seven hundred sixteen million, nine hundred eighty-three thousand, eight hundred twenty-one".