115987786 has 8 divisors (see below), whose sum is σ = 175608000. Its totient is φ = 57451788.

The previous prime is 115987777. The next prime is 115987829. The reversal of 115987786 is 687789511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270786 + ... + 271213.

It is an arithmetic number, because the mean of its divisors is an integer number (21951000).

Almost surely, 2^115987786 is an apocalyptic number.

115987786 is a deficient number, since it is larger than the sum of its proper divisors (59620214).

115987786 is a wasteful number, since it uses less digits than its factorization.

115987786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542108.

The product of its digits is 846720, while the sum is 52.

The square root of 115987786 is about 10769.7625786273. The cubic root of 115987786 is about 487.6827783613.

The spelling of 115987786 in words is "one hundred fifteen million, nine hundred eighty-seven thousand, seven hundred eighty-six".