766606741 has 2 divisors, whose sum is σ = 766606742. Its totient is φ = 766606740.

The previous prime is 766606739. The next prime is 766606759. The reversal of 766606741 is 147606667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 736036900 + 30569841 = 27130^2 + 5529^2 .

It is a cyclic number.

It is not a de Polignac number, because 766606741 - 2¹ = 766606739 is a prime.

Together with 766606739, it forms a pair of twin primes.

It is equal to p_39514768 and since 766606741 and 39514768 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766606541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383303370 + 383303371.

It is an arithmetic number, because the mean of its divisors is an integer number (383303371).

Almost surely, 2^766606741 is an apocalyptic number.

It is an amenable number.

766606741 is a deficient number, since it is larger than the sum of its proper divisors (1).

766606741 is an equidigital number, since it uses as much as digits as its factorization.

766606741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 766606741 is about 27687.6640582047. The cubic root of 766606741 is about 915.2172798618.

The spelling of 766606741 in words is "seven hundred sixty-six million, six hundred six thousand, seven hundred forty-one".