768472517 has 2 divisors, whose sum is σ = 768472518. Its totient is φ = 768472516.

The previous prime is 768472511. The next prime is 768472559. The reversal of 768472517 is 715274867.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398641156 + 369831361 = 19966^2 + 19231^2 .

It is a cyclic number.

It is not a de Polignac number, because 768472517 - 2⁴ = 768472501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768472511) 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, 384236258 + 384236259.

It is an arithmetic number, because the mean of its divisors is an integer number (384236259).

Almost surely, 2^768472517 is an apocalyptic number.

It is an amenable number.

768472517 is a deficient number, since it is larger than the sum of its proper divisors (1).

768472517 is an equidigital number, since it uses as much as digits as its factorization.

768472517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 47.

The square root of 768472517 is about 27721.3368544881. The cubic root of 768472517 is about 915.9591669758.

The spelling of 768472517 in words is "seven hundred sixty-eight million, four hundred seventy-two thousand, five hundred seventeen".