77704713 has 6 divisors (see below), whose sum is σ = 112240154. Its totient is φ = 51803136.

The previous prime is 77704709. The next prime is 77704729. The reversal of 77704713 is 31740777.

It can be written as a sum of positive squares in only one way, i.e., 57562569 + 20142144 = 7587^2 + 4488^2 .

It is not a de Polignac number, because 77704713 - 2² = 77704709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77704703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4316920 + ... + 4316937.

Almost surely, 2^77704713 is an apocalyptic number.

It is an amenable number.

77704713 is a deficient number, since it is larger than the sum of its proper divisors (34535441).

77704713 is a wasteful number, since it uses less digits than its factorization.

77704713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8633863 (or 8633860 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 36.

The square root of 77704713 is about 8815.0276800473. The cubic root of 77704713 is about 426.7260151683.

The spelling of 77704713 in words is "seventy-seven million, seven hundred four thousand, seven hundred thirteen".