1073421 has 12 divisors (see below), whose sum is σ = 1588860. Its totient is φ = 697920.

The previous prime is 1073411. The next prime is 1073441. The reversal of 1073421 is 1243701.

It can be written as a sum of positive squares in 2 ways, for example, as 455625 + 617796 = 675^2 + 786^2 .

It is not a de Polignac number, because 1073421 - 2¹⁰ = 1072397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1073394 and 1073403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073411) 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 11 ways as a sum of consecutive naturals, for example, 1086 + ... + 1823.

It is an arithmetic number, because the mean of its divisors is an integer number (132405).

2^1073421 is an apocalyptic number.

It is an amenable number.

1073421 is a deficient number, since it is larger than the sum of its proper divisors (515439).

1073421 is a wasteful number, since it uses less digits than its factorization.

1073421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 2953 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1073421 is about 1036.0603264289. The cubic root of 1073421 is about 102.3898002638.

The spelling of 1073421 in words is "one million, seventy-three thousand, four hundred twenty-one".