1321834 has 4 divisors (see below), whose sum is σ = 1982754. Its totient is φ = 660916.

The previous prime is 1321823. The next prime is 1321841. The reversal of 1321834 is 4381231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4381231 = 983 ⋅4457.

It can be written as a sum of positive squares in only one way, i.e., 1096209 + 225625 = 1047^2 + 475^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330457 + ... + 330460.

2^1321834 is an apocalyptic number.

1321834 is a deficient number, since it is larger than the sum of its proper divisors (660920).

1321834 is an equidigital number, since it uses as much as digits as its factorization.

1321834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660919.

The product of its digits is 576, while the sum is 22.

The square root of 1321834 is about 1149.7103983178. The cubic root of 1321834 is about 109.7469112512.

The spelling of 1321834 in words is "one million, three hundred twenty-one thousand, eight hundred thirty-four".