77696 has 16 divisors (see below), whose sum is σ = 155040. Its totient is φ = 38784.

The previous prime is 77689. The next prime is 77699. The reversal of 77696 is 69677.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77699) by changing a digit.

77696 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176 + ... + 431.

It is an arithmetic number, because the mean of its divisors is an integer number (9690).

2⁷⁷⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

77696 is a deficient number, since it is larger than the sum of its proper divisors (77344).

77696 is an equidigital number, since it uses as much as digits as its factorization.

77696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 609 counting only the distinct ones).

The product of its digits is 15876, while the sum is 35.

The square root of 77696 is about 278.7400222429. The cubic root of 77696 is about 42.6710065030.

The spelling of 77696 in words is "seventy-seven thousand, six hundred ninety-six".