767668 has 24 divisors (see below), whose sum is σ = 1491840. Its totient is φ = 342720.

The previous prime is 767647. The next prime is 767677. The reversal of 767668 is 866767.

It is a self number, because there is not a number n which added to its sum of digits gives 767668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3093 + ... + 3331.

It is an arithmetic number, because the mean of its divisors is an integer number (62160).

2⁷⁶⁷⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

767668 is a deficient number, since it is larger than the sum of its proper divisors (724172).

767668 is a wasteful number, since it uses less digits than its factorization.

767668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 325 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 767668 is about 876.1666508148. The cubic root of 767668 is about 91.5639414909.

Subtracting 767668 from its reverse (866767), we obtain a palindrome (99099).

It can be divided in two parts, 7676 and 68, that added together give a square (7744 = 88²).

The spelling of 767668 in words is "seven hundred sixty-seven thousand, six hundred sixty-eight".