766363643 has 2 divisors, whose sum is σ = 766363644. Its totient is φ = 766363642.

The previous prime is 766363597. The next prime is 766363681. The reversal of 766363643 is 346363667.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 766363643 - 2⁶ = 766363579 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 766363594 and 766363603.

It is not a weakly prime, because it can be changed into another prime (766362643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383181821 + 383181822.

It is an arithmetic number, because the mean of its divisors is an integer number (383181822).

Almost surely, 2^766363643 is an apocalyptic number.

766363643 is a deficient number, since it is larger than the sum of its proper divisors (1).

766363643 is an equidigital number, since it uses as much as digits as its factorization.

766363643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 44.

The square root of 766363643 is about 27683.2737045314. The cubic root of 766363643 is about 915.1205283810.

The spelling of 766363643 in words is "seven hundred sixty-six million, three hundred sixty-three thousand, six hundred forty-three".