77845116 has 24 divisors (see below), whose sum is σ = 182043904. Its totient is φ = 25890480.

The previous prime is 77845111. The next prime is 77845121. The reversal of 77845116 is 61154877.

It is an interprime number because it is at equal distance from previous prime (77845111) and next prime (77845121).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77845111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450 + ... + 12561.

Almost surely, 2^77845116 is an apocalyptic number.

It is an amenable number.

77845116 is an abundant number, since it is smaller than the sum of its proper divisors (104198788).

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

77845116 is a wasteful number, since it uses less digits than its factorization.

77845116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14481 (or 14479 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 77845116 is about 8822.9879292675. The cubic root of 77845116 is about 426.9828745917.

The spelling of 77845116 in words is "seventy-seven million, eight hundred forty-five thousand, one hundred sixteen".