1026813 has 16 divisors (see below), whose sum is σ = 1444352. Its totient is φ = 648000.

The previous prime is 1026811. The next prime is 1026829. The reversal of 1026813 is 3186201.

It is not a de Polignac number, because 1026813 - 2¹ = 1026811 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1026813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5583 + ... + 5763.

It is an arithmetic number, because the mean of its divisors is an integer number (90272).

2^1026813 is an apocalyptic number.

It is an amenable number.

1026813 is a deficient number, since it is larger than the sum of its proper divisors (417539).

1026813 is a wasteful number, since it uses less digits than its factorization.

1026813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1026813 is about 1013.3178178637. The cubic root of 1026813 is about 100.8858953850.

The spelling of 1026813 in words is "one million, twenty-six thousand, eight hundred thirteen".