77681714 has 16 divisors (see below), whose sum is σ = 127404576. Its totient is φ = 35229600.

The previous prime is 77681711. The next prime is 77681717. The reversal of 77681714 is 41718677.

It is an interprime number because it is at equal distance from previous prime (77681711) and next prime (77681717).

It is not an unprimeable number, because it can be changed into a prime (77681711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6494 + ... + 14054.

It is an arithmetic number, because the mean of its divisors is an integer number (7962786).

Almost surely, 2^77681714 is an apocalyptic number.

77681714 is a deficient number, since it is larger than the sum of its proper divisors (49722862).

77681714 is a wasteful number, since it uses less digits than its factorization.

77681714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8041.

The product of its digits is 65856, while the sum is 41.

The square root of 77681714 is about 8813.7230498808. The cubic root of 77681714 is about 426.6839103003.

The spelling of 77681714 in words is "seventy-seven million, six hundred eighty-one thousand, seven hundred fourteen".