766105427 has 2 divisors, whose sum is σ = 766105428. Its totient is φ = 766105426.

The previous prime is 766105421. The next prime is 766105447. The reversal of 766105427 is 724501667.

It is a weak prime.

It is an emirp because it is prime and its reverse (724501667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 766105427 - 2⁴ = 766105411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (766105421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383052713 + 383052714.

It is an arithmetic number, because the mean of its divisors is an integer number (383052714).

Almost surely, 2^766105427 is an apocalyptic number.

766105427 is a deficient number, since it is larger than the sum of its proper divisors (1).

766105427 is an equidigital number, since it uses as much as digits as its factorization.

766105427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 766105427 is about 27678.6095568401. The cubic root of 766105427 is about 915.0177376199.

The spelling of 766105427 in words is "seven hundred sixty-six million, one hundred five thousand, four hundred twenty-seven".