77534916 has 12 divisors (see below), whose sum is σ = 180914832. Its totient is φ = 25844968.

The previous prime is 77534867. The next prime is 77534917. The reversal of 77534916 is 61943577.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (77534917) by changing a digit.

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, 3230610 + ... + 3230633.

It is an arithmetic number, because the mean of its divisors is an integer number (15076236).

Almost surely, 2^77534916 is an apocalyptic number.

It is an amenable number.

77534916 is an abundant number, since it is smaller than the sum of its proper divisors (103379916).

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

77534916 is a wasteful number, since it uses less digits than its factorization.

77534916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461250 (or 6461248 counting only the distinct ones).

The product of its digits is 158760, while the sum is 42.

The square root of 77534916 is about 8805.3913030597. The cubic root of 77534916 is about 426.4149673779.

The spelling of 77534916 in words is "seventy-seven million, five hundred thirty-four thousand, nine hundred sixteen".