766946497 has 2 divisors, whose sum is σ = 766946498. Its totient is φ = 766946496.

The previous prime is 766946491. The next prime is 766946501. The reversal of 766946497 is 794649667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 534719376 + 232227121 = 23124^2 + 15239^2 .

It is a cyclic number.

It is not a de Polignac number, because 766946497 - 2³ = 766946489 is a prime.

It is not a weakly prime, because it can be changed into another prime (766946491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383473248 + 383473249.

It is an arithmetic number, because the mean of its divisors is an integer number (383473249).

Almost surely, 2^766946497 is an apocalyptic number.

It is an amenable number.

766946497 is a deficient number, since it is larger than the sum of its proper divisors (1).

766946497 is an equidigital number, since it uses as much as digits as its factorization.

766946497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 58.

The square root of 766946497 is about 27693.7988907264. The cubic root of 766946497 is about 915.3524663573.

The spelling of 766946497 in words is "seven hundred sixty-six million, nine hundred forty-six thousand, four hundred ninety-seven".