776 has 8 divisors (see below), whose sum is σ = 1470. Its totient is φ = 384.

The previous prime is 773. The next prime is 787. The reversal of 776 is 677.

776 = T₁₃ + T₁₄ + ... + T₁₈.

776 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in only one way, i.e., 676 + 100 = 26^2 + 10^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a magnanimous number.

776 is an undulating number in base 11.

It is a plaindrome in base 13 and base 15.

It is a nialpdrome in base 6 and base 10.

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 776.

It is not an unprimeable number, because it can be changed into a prime (773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41 + ... + 56.

It is an amenable number.

776 is a deficient number, since it is larger than the sum of its proper divisors (694).

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

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

The sum of its prime factors is 103 (or 99 counting only the distinct ones).

The product of its digits is 294, while the sum is 20.

The square root of 776 is about 27.8567765544. The cubic root of 776 is about 9.1894017844.

Subtracting from 776 its reverse (677), we obtain a palindrome (99).

The spelling of 776 in words is "seven hundred seventy-six", and thus it is an aban number and an oban number.