77745676 has 12 divisors (see below), whose sum is σ = 139373640. Its totient is φ = 37924640.

The previous prime is 77745673. The next prime is 77745691. The reversal of 77745676 is 67654777.

It is not an unprimeable number, because it can be changed into a prime (77745673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236866 + ... + 237193.

It is an arithmetic number, because the mean of its divisors is an integer number (11614470).

Almost surely, 2^77745676 is an apocalyptic number.

It is an amenable number.

77745676 is a deficient number, since it is larger than the sum of its proper divisors (61627964).

77745676 is a wasteful number, since it uses less digits than its factorization.

77745676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474104 (or 474102 counting only the distinct ones).

The product of its digits is 1728720, while the sum is 49.

The square root of 77745676 is about 8817.3508493198. The cubic root of 77745676 is about 426.8009866271.

The spelling of 77745676 in words is "seventy-seven million, seven hundred forty-five thousand, six hundred seventy-six".