787768 has 16 divisors (see below), whose sum is σ = 1503000. Its totient is φ = 386976.

The previous prime is 787757. The next prime is 787769. The reversal of 787768 is 867787.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 787768.

It is not an unprimeable number, because it can be changed into a prime (787769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363 + ... + 1306.

2⁷⁸⁷⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

787768 is a deficient number, since it is larger than the sum of its proper divisors (715232).

787768 is a wasteful number, since it uses less digits than its factorization.

787768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734 (or 1730 counting only the distinct ones).

The product of its digits is 131712, while the sum is 43.

The square root of 787768 is about 887.5629555136. The cubic root of 787768 is about 92.3562119566.

The spelling of 787768 in words is "seven hundred eighty-seven thousand, seven hundred sixty-eight".