10504621 has 4 divisors (see below), whose sum is σ = 10511644. Its totient is φ = 10497600.

The previous prime is 10504609. The next prime is 10504639. The reversal of 10504621 is 12640501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12640501 = 23 ⋅549587.

It can be written as a sum of positive squares in 2 ways, for example, as 8328996 + 2175625 = 2886^2 + 1475^2 .

It is a 3-Lehmer number, since φ(10504621) divides (10504621-1)³.

It is a cyclic number.

It is not a de Polignac number, because 10504621 - 2⁷ = 10504493 is a prime.

It is a super-2 number, since 2×10504621² = 220694124707282, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10504121) 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, 270 + ... + 4591.

It is an arithmetic number, because the mean of its divisors is an integer number (2627911).

Almost surely, 2^10504621 is an apocalyptic number.

It is an amenable number.

10504621 is a deficient number, since it is larger than the sum of its proper divisors (7023).

10504621 is an equidigital number, since it uses as much as digits as its factorization.

10504621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 10504621 is about 3241.0833065505. The cubic root of 10504621 is about 219.0080757084.

It can be divided in two parts, 1050 and 4621, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 10504621 in words is "ten million, five hundred four thousand, six hundred twenty-one".