768936321 has 24 divisors (see below), whose sum is σ = 1171366560. Its totient is φ = 503926272.

The previous prime is 768936317. The next prime is 768936323. The reversal of 768936321 is 123639867.

768936321 is a `hidden beast` number, since 7 + 6 + 8 + 9 + 3 + 632 + 1 = 666.

It is not a de Polignac number, because 768936321 - 2² = 768936317 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (768936323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12480 + ... + 41153.

It is an arithmetic number, because the mean of its divisors is an integer number (48806940).

Almost surely, 2^768936321 is an apocalyptic number.

It is an amenable number.

768936321 is a deficient number, since it is larger than the sum of its proper divisors (402430239).

768936321 is an equidigital number, since it uses as much as digits as its factorization.

768936321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53707 (or 53695 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 768936321 is about 27729.7010622185. The cubic root of 768936321 is about 916.1434026201.

The spelling of 768936321 in words is "seven hundred sixty-eight million, nine hundred thirty-six thousand, three hundred twenty-one".