766012243 has 2 divisors, whose sum is σ = 766012244. Its totient is φ = 766012242.

The previous prime is 766012241. The next prime is 766012253. The reversal of 766012243 is 342210667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 766012243 - 2¹ = 766012241 is a prime.

Together with 766012241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (766012241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383006121 + 383006122.

It is an arithmetic number, because the mean of its divisors is an integer number (383006122).

Almost surely, 2^766012243 is an apocalyptic number.

766012243 is a deficient number, since it is larger than the sum of its proper divisors (1).

766012243 is an equidigital number, since it uses as much as digits as its factorization.

766012243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 766012243 is about 27676.9261840978. The cubic root of 766012243 is about 914.9806372126.

The spelling of 766012243 in words is "seven hundred sixty-six million, twelve thousand, two hundred forty-three".