716121641 has 2 divisors, whose sum is σ = 716121642. Its totient is φ = 716121640.

The previous prime is 716121589. The next prime is 716121677. The reversal of 716121641 is 146121617.

716121641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 453519616 + 262602025 = 21296^2 + 16205^2 .

It is an emirp because it is prime and its reverse (146121617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 716121641 - 2¹⁸ = 715859497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (716127641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358060820 + 358060821.

It is an arithmetic number, because the mean of its divisors is an integer number (358060821).

Almost surely, 2^716121641 is an apocalyptic number.

It is an amenable number.

716121641 is a deficient number, since it is larger than the sum of its proper divisors (1).

716121641 is an equidigital number, since it uses as much as digits as its factorization.

716121641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 716121641 is about 26760.4491927920. The cubic root of 716121641 is about 894.6687458415.

The spelling of 716121641 in words is "seven hundred sixteen million, one hundred twenty-one thousand, six hundred forty-one".