766672943 has 2 divisors, whose sum is σ = 766672944. Its totient is φ = 766672942.

The previous prime is 766672939. The next prime is 766672979. The reversal of 766672943 is 349276667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 766672943 - 2² = 766672939 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 766672891 and 766672900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766678943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383336471 + 383336472.

It is an arithmetic number, because the mean of its divisors is an integer number (383336472).

Almost surely, 2^766672943 is an apocalyptic number.

766672943 is a deficient number, since it is larger than the sum of its proper divisors (1).

766672943 is an equidigital number, since it uses as much as digits as its factorization.

766672943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 50.

The square root of 766672943 is about 27688.8595467563. The cubic root of 766672943 is about 915.2436242994.

The spelling of 766672943 in words is "seven hundred sixty-six million, six hundred seventy-two thousand, nine hundred forty-three".