1083421 has 4 divisors (see below), whose sum is σ = 1101244. Its totient is φ = 1065600.

The previous prime is 1083409. The next prime is 1083431. The reversal of 1083421 is 1243801.

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 171396 + 912025 = 414^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083421 - 2¹⁷ = 952349 is a prime.

It is a d-powerful number, because it can be written as 1 + 0 + 8⁵ + 3³ + 4¹⁰ + 2¹¹ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8820 + ... + 8941.

It is an arithmetic number, because the mean of its divisors is an integer number (275311).

2^1083421 is an apocalyptic number.

It is an amenable number.

1083421 is a deficient number, since it is larger than the sum of its proper divisors (17823).

1083421 is an equidigital number, since it uses as much as digits as its factorization.

1083421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17822.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1083421 is about 1040.8751125856. The cubic root of 1083421 is about 102.7067727624.

The spelling of 1083421 in words is "one million, eighty-three thousand, four hundred twenty-one".