77115108 has 48 divisors (see below), whose sum is σ = 207172224. Its totient is φ = 21868800.

The previous prime is 77115061. The next prime is 77115121. The reversal of 77115108 is 80151177.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 8158 + ... + 14858.

It is an arithmetic number, because the mean of its divisors is an integer number (4316088).

Almost surely, 2^77115108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77115108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103586112).

77115108 is an abundant number, since it is smaller than the sum of its proper divisors (130057116).

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

77115108 is a wasteful number, since it uses less digits than its factorization.

77115108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852 (or 6850 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 30.

The square root of 77115108 is about 8781.5208250052. The cubic root of 77115108 is about 425.6439750597.

The spelling of 77115108 in words is "seventy-seven million, one hundred fifteen thousand, one hundred eight".