716834848921 has 3 divisors (see below), whose sum is σ = 716835695583. Its totient is φ = 716834002260.

The previous prime is 716834848897. The next prime is 716834848979. The reversal of 716834848921 is 129848438617.

The square root of 716834848921 is 846661.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 171570752521 + 545264096400 = 414211^2 + 738420^2 .

It is not a de Polignac number, because 716834848921 - 2²⁷ = 716700631193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 716834848921.

It is not an unprimeable number, because it can be changed into a prime (716834848981) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 423331 + ... + 1269991.

It is an arithmetic number, because the mean of its divisors is an integer number (238945231861).

Almost surely, 2^716834848921 is an apocalyptic number.

716834848921 is the 846661-st square number.

716834848921 is the 423331-st centered octagonal number.

It is an amenable number.

716834848921 is a deficient number, since it is larger than the sum of its proper divisors (846662).

716834848921 is an frugal number, since it uses more digits than its factorization.

716834848921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693322 (or 846661 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 61.

The spelling of 716834848921 in words is "seven hundred sixteen billion, eight hundred thirty-four million, eight hundred forty-eight thousand, nine hundred twenty-one".