768728 has 16 divisors (see below), whose sum is σ = 1450680. Its totient is φ = 381888.

The previous prime is 768727. The next prime is 768751. The reversal of 768728 is 827867.

It is a junction number, because it is equal to n+sod(n) for n = 768691 and 768700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768727) 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, 2300 + ... + 2612.

2⁷⁶⁸⁷²⁸ is an apocalyptic number.

It is an amenable number.

768728 is a deficient number, since it is larger than the sum of its proper divisors (681952).

768728 is a wasteful number, since it uses less digits than its factorization.

768728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 622 counting only the distinct ones).

The product of its digits is 37632, while the sum is 38.

The square root of 768728 is about 876.7713498969. The cubic root of 768728 is about 91.6060660984.

The spelling of 768728 in words is "seven hundred sixty-eight thousand, seven hundred twenty-eight".