10528409 has 4 divisors (see below), whose sum is σ = 10661760. Its totient is φ = 10395060.

The previous prime is 10528403. The next prime is 10528439. The reversal of 10528409 is 90482501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10528409 - 2¹² = 10524313 is a prime.

It is a super-2 number, since 2×10528409² = 221694792142562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10528403) 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, 66557 + ... + 66714.

It is an arithmetic number, because the mean of its divisors is an integer number (2665440).

Almost surely, 2^10528409 is an apocalyptic number.

It is an amenable number.

10528409 is a deficient number, since it is larger than the sum of its proper divisors (133351).

10528409 is an equidigital number, since it uses as much as digits as its factorization.

10528409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133350.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 10528409 is about 3244.7509919869. The cubic root of 10528409 is about 219.1732676588.

The spelling of 10528409 in words is "ten million, five hundred twenty-eight thousand, four hundred nine".