768904 has 16 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 381840.

The previous prime is 768881. The next prime is 768923. The reversal of 768904 is 409867.

It is a super-2 number, since 2×768904² = 1182426722432, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 768904.

It is a congruent number.

It is an unprimeable number.

768904 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569 + ... + 1999.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2⁷⁶⁸⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

768904 is a deficient number, since it is larger than the sum of its proper divisors (682616).

768904 is a wasteful number, since it uses less digits than its factorization.

768904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 768904 is about 876.8717123958. The cubic root of 768904 is about 91.6130566236.

The spelling of 768904 in words is "seven hundred sixty-eight thousand, nine hundred four".