10504421 has 4 divisors (see below), whose sum is σ = 10612812. Its totient is φ = 10396032.

The previous prime is 10504391. The next prime is 10504451. The reversal of 10504421 is 12440501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12440501 = 223 ⋅55787.

It is an interprime number because it is at equal distance from previous prime (10504391) and next prime (10504451).

It can be written as a sum of positive squares in 2 ways, for example, as 1653796 + 8850625 = 1286^2 + 2975^2 .

It is a cyclic number.

It is not a de Polignac number, because 10504421 - 2⁶ = 10504357 is a prime.

It is a super-2 number, since 2×10504421² = 220685721090482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10504421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10504451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54050 + ... + 54243.

It is an arithmetic number, because the mean of its divisors is an integer number (2653203).

Almost surely, 2^10504421 is an apocalyptic number.

It is an amenable number.

10504421 is a deficient number, since it is larger than the sum of its proper divisors (108391).

10504421 is an equidigital number, since it uses as much as digits as its factorization.

10504421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108390.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 10504421 is about 3241.0524525222. The cubic root of 10504421 is about 219.0066857838.

Adding to 10504421 its reverse (12440501), we get a palindrome (22944922).

The spelling of 10504421 in words is "ten million, five hundred four thousand, four hundred twenty-one".