1033421 has 2 divisors, whose sum is σ = 1033422. Its totient is φ = 1033420.

The previous prime is 1033393. The next prime is 1033423. The reversal of 1033421 is 1243301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 835396 + 198025 = 914^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 1033421 - 2¹⁰ = 1032397 is a prime.

Together with 1033423, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1033396 and 1033405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1033423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516710 + 516711.

It is an arithmetic number, because the mean of its divisors is an integer number (516711).

2^1033421 is an apocalyptic number.

It is an amenable number.

1033421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1033421 is an equidigital number, since it uses as much as digits as its factorization.

1033421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1033421 is about 1016.5731650993. The cubic root of 1033421 is about 101.1018480514.

Adding to 1033421 its reverse (1243301), we get a palindrome (2276722).

The spelling of 1033421 in words is "one million, thirty-three thousand, four hundred twenty-one".