116861886 has 32 divisors (see below), whose sum is σ = 261061920. Its totient is φ = 38748672.

The previous prime is 116861879. The next prime is 116861897. The reversal of 116861886 is 688168611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4816 + ... + 16028.

It is an arithmetic number, because the mean of its divisors is an integer number (8158185).

Almost surely, 2^116861886 is an apocalyptic number.

116861886 is an abundant number, since it is smaller than the sum of its proper divisors (144200034).

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

116861886 is a wasteful number, since it uses less digits than its factorization.

116861886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11417 (or 11411 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 116861886 is about 10810.2676192590. The cubic root of 116861886 is about 488.9047953464.

The spelling of 116861886 in words is "one hundred sixteen million, eight hundred sixty-one thousand, eight hundred eighty-six".