768117487 has 2 divisors, whose sum is σ = 768117488. Its totient is φ = 768117486.

The previous prime is 768117481. The next prime is 768117523. The reversal of 768117487 is 784711867.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 768117487 - 2⁷ = 768117359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 768117487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768117481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384058743 + 384058744.

It is an arithmetic number, because the mean of its divisors is an integer number (384058744).

Almost surely, 2^768117487 is an apocalyptic number.

768117487 is a deficient number, since it is larger than the sum of its proper divisors (1).

768117487 is an equidigital number, since it uses as much as digits as its factorization.

768117487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 526848, while the sum is 49.

The square root of 768117487 is about 27714.9325635117. The cubic root of 768117487 is about 915.8180892457.

The spelling of 768117487 in words is "seven hundred sixty-eight million, one hundred seventeen thousand, four hundred eighty-seven".