766321741 has 2 divisors, whose sum is σ = 766321742. Its totient is φ = 766321740.

The previous prime is 766321739. The next prime is 766321769. The reversal of 766321741 is 147123667.

766321741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759278025 + 7043716 = 27555^2 + 2654^2 .

It is an emirp because it is prime and its reverse (147123667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 766321741 - 2¹ = 766321739 is a prime.

Together with 766321739, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 766321741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (736321741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383160870 + 383160871.

It is an arithmetic number, because the mean of its divisors is an integer number (383160871).

Almost surely, 2^766321741 is an apocalyptic number.

It is an amenable number.

766321741 is a deficient number, since it is larger than the sum of its proper divisors (1).

766321741 is an equidigital number, since it uses as much as digits as its factorization.

766321741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 766321741 is about 27682.5168834049. The cubic root of 766321741 is about 915.1038495804.

The spelling of 766321741 in words is "seven hundred sixty-six million, three hundred twenty-one thousand, seven hundred forty-one".