986818986 has 12 divisors (see below), whose sum is σ = 2138107842. Its totient is φ = 328939656.

The previous prime is 986818969. The next prime is 986818993. The reversal of 986818986 is 689818689.

It can be written as a sum of positive squares in only one way, i.e., 707294025 + 279524961 = 26595^2 + 16719^2 .

It is a super-2 number, since 2×986818986² = 1947623422260136392, which contains 22 as substring.

986818986 is a strobogrammatic number because it is the same when read upside-down.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27411621 + ... + 27411656.

Almost surely, 2^986818986 is an apocalyptic number.

986818986 is an abundant number, since it is smaller than the sum of its proper divisors (1151288856).

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

986818986 is a wasteful number, since it uses less digits than its factorization.

986818986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54823285 (or 54823282 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The square root of 986818986 is about 31413.6751431602. The cubic root of 986818986 is about 995.5868817030.

The spelling of 986818986 in words is "nine hundred eighty-six million, eight hundred eighteen thousand, nine hundred eighty-six".