1086889 has 4 divisors (see below), whose sum is σ = 1089424. Its totient is φ = 1084356.

The previous prime is 1086881. The next prime is 1086893. The reversal of 1086889 is 9886801.

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.

It is a cyclic number.

It is not a de Polignac number, because 1086889 - 2³ = 1086881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1086881) 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, 447 + ... + 1540.

It is an arithmetic number, because the mean of its divisors is an integer number (272356).

2^1086889 is an apocalyptic number.

It is an amenable number.

1086889 is a deficient number, since it is larger than the sum of its proper divisors (2535).

1086889 is an equidigital number, since it uses as much as digits as its factorization.

1086889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534.

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

The square root of 1086889 is about 1042.5396874940. The cubic root of 1086889 is about 102.8162432003.

The spelling of 1086889 in words is "one million, eighty-six thousand, eight hundred eighty-nine".