886981 has 2 divisors, whose sum is σ = 886982. Its totient is φ = 886980.

The previous prime is 886979. The next prime is 886987. The reversal of 886981 is 189688.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 476100 + 410881 = 690^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 886981 - 2¹ = 886979 is a prime.

It is a super-2 number, since 2×886981² = 1573470588722, which contains 22 as substring.

Together with 886979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (886987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443490 + 443491.

It is an arithmetic number, because the mean of its divisors is an integer number (443491).

2⁸⁸⁶⁹⁸¹ is an apocalyptic number.

It is an amenable number.

886981 is a deficient number, since it is larger than the sum of its proper divisors (1).

886981 is an equidigital number, since it uses as much as digits as its factorization.

886981 is an odious number, because the sum of its binary digits is odd.

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

The square root of 886981 is about 941.7966871889. The cubic root of 886981 is about 96.0811307795.

The spelling of 886981 in words is "eight hundred eighty-six thousand, nine hundred eighty-one".