77108136 has 32 divisors (see below), whose sum is σ = 220309440. Its totient is φ = 22030848.

The previous prime is 77108131. The next prime is 77108173. The reversal of 77108136 is 63180177.

It is a junction number, because it is equal to n+sod(n) for n = 77108097 and 77108106.

It is not an unprimeable number, because it can be changed into a prime (77108131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229321 + ... + 229656.

It is an arithmetic number, because the mean of its divisors is an integer number (6884670).

Almost surely, 2^77108136 is an apocalyptic number.

It is an amenable number.

77108136 is an abundant number, since it is smaller than the sum of its proper divisors (143201304).

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

77108136 is a wasteful number, since it uses less digits than its factorization.

77108136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458993 (or 458989 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 77108136 is about 8781.1238460689. The cubic root of 77108136 is about 425.6311471401.

The spelling of 77108136 in words is "seventy-seven million, one hundred eight thousand, one hundred thirty-six".