77346660 has 24 divisors (see below), whose sum is σ = 216570816. Its totient is φ = 20625760.

The previous prime is 77346653. The next prime is 77346679. The reversal of 77346660 is 6664377.

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 7 ways as a sum of consecutive naturals, for example, 644496 + ... + 644615.

It is an arithmetic number, because the mean of its divisors is an integer number (9023784).

Almost surely, 2^77346660 is an apocalyptic number.

It is an amenable number.

77346660 is an abundant number, since it is smaller than the sum of its proper divisors (139224156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77346660 is a wasteful number, since it uses less digits than its factorization.

77346660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289123 (or 1289121 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 77346660 is about 8794.6949918687. The cubic root of 77346660 is about 426.0695735956.

The spelling of 77346660 in words is "seventy-seven million, three hundred forty-six thousand, six hundred sixty".