766380497 has 4 divisors (see below), whose sum is σ = 766444596. Its totient is φ = 766316400.

The previous prime is 766380467. The next prime is 766380521. The reversal of 766380497 is 794083667.

766380497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 713904961 + 52475536 = 26719^2 + 7244^2 .

It is a cyclic number.

It is not a de Polignac number, because 766380497 - 2²² = 762186193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766380427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8198 + ... + 39999.

It is an arithmetic number, because the mean of its divisors is an integer number (191611149).

Almost surely, 2^766380497 is an apocalyptic number.

It is an amenable number.

766380497 is a deficient number, since it is larger than the sum of its proper divisors (64099).

766380497 is a wasteful number, since it uses less digits than its factorization.

766380497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64098.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 766380497 is about 27683.5781104972. The cubic root of 766380497 is about 915.1272368274.

The spelling of 766380497 in words is "seven hundred sixty-six million, three hundred eighty thousand, four hundred ninety-seven".