1086881 has 2 divisors, whose sum is σ = 1086882. Its totient is φ = 1086880.

The previous prime is 1086863. The next prime is 1086893. The reversal of 1086881 is 1886801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 774400 + 312481 = 880^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1086881 - 2⁶ = 1086817 is a prime.

It is a super-2 number, since 2×1086881² = 2362620616322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is equal to p₈₄₇₆₇ and since 1086881 and 84767 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1082881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543440 + 543441.

It is an arithmetic number, because the mean of its divisors is an integer number (543441).

2^1086881 is an apocalyptic number.

It is an amenable number.

1086881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1086881 is an equidigital number, since it uses as much as digits as its factorization.

1086881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 1086881 is about 1042.5358507025. The cubic root of 1086881 is about 102.8159909415.

The spelling of 1086881 in words is "one million, eighty-six thousand, eight hundred eighty-one".