77706964 has 12 divisors (see below), whose sum is σ = 136141600. Its totient is φ = 38809368.

The previous prime is 77706947. The next prime is 77706997. The reversal of 77706964 is 46960777.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6894 + ... + 14245.

Almost surely, 2^77706964 is an apocalyptic number.

It is an amenable number.

77706964 is a deficient number, since it is larger than the sum of its proper divisors (58434636).

77706964 is a wasteful number, since it uses less digits than its factorization.

77706964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22062 (or 22060 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 77706964 is about 8815.1553588125. The cubic root of 77706964 is about 426.7301356862.

The spelling of 77706964 in words is "seventy-seven million, seven hundred six thousand, nine hundred sixty-four".