766359497 has 2 divisors, whose sum is σ = 766359498. Its totient is φ = 766359496.

The previous prime is 766359479. The next prime is 766359499. The reversal of 766359497 is 794953667.

Together with previous prime (766359479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758231296 + 8128201 = 27536^2 + 2851^2 .

It is an emirp because it is prime and its reverse (794953667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 766359497 - 2¹⁴ = 766343113 is a prime.

Together with 766359499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (766359499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383179748 + 383179749.

It is an arithmetic number, because the mean of its divisors is an integer number (383179749).

Almost surely, 2^766359497 is an apocalyptic number.

It is an amenable number.

766359497 is a deficient number, since it is larger than the sum of its proper divisors (1).

766359497 is an equidigital number, since it uses as much as digits as its factorization.

766359497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8573040, while the sum is 56.

The square root of 766359497 is about 27683.1988216680. The cubic root of 766359497 is about 915.1188781216.

The spelling of 766359497 in words is "seven hundred sixty-six million, three hundred fifty-nine thousand, four hundred ninety-seven".