1422813 has 12 divisors (see below), whose sum is σ = 2207040. Its totient is φ = 812952.

The previous prime is 1422797. The next prime is 1422821. The reversal of 1422813 is 3182241.

It is not a de Polignac number, because 1422813 - 2⁴ = 1422797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1422813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4693 + ... + 4986.

It is an arithmetic number, because the mean of its divisors is an integer number (183920).

2^1422813 is an apocalyptic number.

It is an amenable number.

1422813 is a deficient number, since it is larger than the sum of its proper divisors (784227).

1422813 is an equidigital number, since it uses as much as digits as its factorization.

1422813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9696 (or 9689 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1422813 is about 1192.8172533963. The cubic root of 1422813 is about 112.4732578412.

It can be divided in two parts, 14228 and 13, that added together give a palindrome (14241).

The spelling of 1422813 in words is "one million, four hundred twenty-two thousand, eight hundred thirteen".