1026881 has 4 divisors (see below), whose sum is σ = 1071552. Its totient is φ = 982212.

The previous prime is 1026859. The next prime is 1026887. The reversal of 1026881 is 1886201.

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 a de Polignac number, because none of the positive numbers 2^k-1026881 is a prime.

It is a super-2 number, since 2×1026881² = 2108969176322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1026881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22301 + ... + 22346.

It is an arithmetic number, because the mean of its divisors is an integer number (267888).

2^1026881 is an apocalyptic number.

It is an amenable number.

1026881 is a deficient number, since it is larger than the sum of its proper divisors (44671).

1026881 is an equidigital number, since it uses as much as digits as its factorization.

1026881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44670.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1026881 is about 1013.3513704535. The cubic root of 1026881 is about 100.8881223694. Note that the first 3 decimals are identical.

The spelling of 1026881 in words is "one million, twenty-six thousand, eight hundred eighty-one".