77696697 has 16 divisors (see below), whose sum is σ = 111722688. Its totient is φ = 47745600.

The previous prime is 77696693. The next prime is 77696761. The reversal of 77696697 is 79669677.

It is not a de Polignac number, because 77696697 - 2² = 77696693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77696693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52822 + ... + 54272.

It is an arithmetic number, because the mean of its divisors is an integer number (6982668).

Almost surely, 2^77696697 is an apocalyptic number.

It is an amenable number.

77696697 is a deficient number, since it is larger than the sum of its proper divisors (34025991).

77696697 is a wasteful number, since it uses less digits than its factorization.

77696697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840.

The product of its digits is 6001128, while the sum is 57.

The square root of 77696697 is about 8814.5729902248. The cubic root of 77696697 is about 426.7113410117.

The spelling of 77696697 in words is "seventy-seven million, six hundred ninety-six thousand, six hundred ninety-seven".