986881 has 4 divisors (see below), whose sum is σ = 1127872. Its totient is φ = 845892.

The previous prime is 986857. The next prime is 986903. The reversal of 986881 is 188689.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 188689 = 19 ⋅9931.

It is a cyclic number.

It is not a de Polignac number, because 986881 - 2⁵ = 986849 is a prime.

It is a super-2 number, since 2×986881² = 1947868216322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (986801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70485 + ... + 70498.

It is an arithmetic number, because the mean of its divisors is an integer number (281968).

2⁹⁸⁶⁸⁸¹ is an apocalyptic number.

It is an amenable number.

986881 is a deficient number, since it is larger than the sum of its proper divisors (140991).

986881 is a wasteful number, since it uses less digits than its factorization.

986881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140990.

The product of its digits is 27648, while the sum is 40.

The square root of 986881 is about 993.4188441941. The cubic root of 986881 is about 99.5607736264.

It can be divided in two parts, 98688 and 1, that added together give a palindrome (98689).

The spelling of 986881 in words is "nine hundred eighty-six thousand, eight hundred eighty-one".