10489421 has 2 divisors, whose sum is σ = 10489422. Its totient is φ = 10489420.

The previous prime is 10489411. The next prime is 10489441. The reversal of 10489421 is 12498401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9517225 + 972196 = 3085^2 + 986^2 .

It is an emirp because it is prime and its reverse (12498401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10489421 - 2¹⁸ = 10227277 is a prime.

It is a super-2 number, since 2×10489421² = 220055905830482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10489411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5244710 + 5244711.

It is an arithmetic number, because the mean of its divisors is an integer number (5244711).

Almost surely, 2^10489421 is an apocalyptic number.

It is an amenable number.

10489421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10489421 is an equidigital number, since it uses as much as digits as its factorization.

10489421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 10489421 is about 3238.7375626932. The cubic root of 10489421 is about 218.9023911189.

The spelling of 10489421 in words is "ten million, four hundred eighty-nine thousand, four hundred twenty-one".