1426813 has 4 divisors (see below), whose sum is σ = 1453788. Its totient is φ = 1399840.

The previous prime is 1426811. The next prime is 1426847. The reversal of 1426813 is 3186241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1295044 + 131769 = 1138^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426813 - 2¹ = 1426811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426811) 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 3 ways as a sum of consecutive naturals, for example, 13408 + ... + 13513.

It is an arithmetic number, because the mean of its divisors is an integer number (363447).

2^1426813 is an apocalyptic number.

It is an amenable number.

1426813 is a deficient number, since it is larger than the sum of its proper divisors (26975).

1426813 is an equidigital number, since it uses as much as digits as its factorization.

1426813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26974.

The product of its digits is 1152, while the sum is 25.

The square root of 1426813 is about 1194.4927793838. The cubic root of 1426813 is about 112.5785591209.

The spelling of 1426813 in words is "one million, four hundred twenty-six thousand, eight hundred thirteen".