1026681 has 16 divisors (see below), whose sum is σ = 1487808. Its totient is φ = 627200.

The previous prime is 1026679. The next prime is 1026709. The reversal of 1026681 is 1866201.

It is a cyclic number.

It is not a de Polignac number, because 1026681 - 2¹ = 1026679 is a prime.

It is a super-4 number, since 4×1026681⁴ (a number of 25 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1026661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1846 + ... + 2336.

It is an arithmetic number, because the mean of its divisors is an integer number (92988).

2^1026681 is an apocalyptic number.

It is an amenable number.

1026681 is a deficient number, since it is larger than the sum of its proper divisors (461127).

1026681 is a wasteful number, since it uses less digits than its factorization.

1026681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1026681 is about 1013.2526831941. The cubic root of 1026681 is about 100.8815721347.

The spelling of 1026681 in words is "one million, twenty-six thousand, six hundred eighty-one".