986131986 has 32 divisors (see below), whose sum is σ = 2306439168. Its totient is φ = 275199120.

The previous prime is 986131981. The next prime is 986131987. The reversal of 986131986 is 689131689.

986131986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (986131981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271210 + ... + 274821.

It is an arithmetic number, because the mean of its divisors is an integer number (72076224).

Almost surely, 2^986131986 is an apocalyptic number.

986131986 is an abundant number, since it is smaller than the sum of its proper divisors (1320307182).

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

986131986 is a wasteful number, since it uses less digits than its factorization.

986131986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546086.

The product of its digits is 559872, while the sum is 51.

The square root of 986131986 is about 31402.7385111554. The cubic root of 986131986 is about 995.3557934015.

The spelling of 986131986 in words is "nine hundred eighty-six million, one hundred thirty-one thousand, nine hundred eighty-six".