10648409 has 4 divisors (see below), whose sum is σ = 11274804. Its totient is φ = 10022016.

The previous prime is 10648387. The next prime is 10648427. The reversal of 10648409 is 90484601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 3610000 = 2653^2 + 1900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10648409 is a prime.

It is a super-2 number, since 2×10648409² = 226777228462562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10648439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313172 + ... + 313205.

It is an arithmetic number, because the mean of its divisors is an integer number (2818701).

Almost surely, 2^10648409 is an apocalyptic number.

It is an amenable number.

10648409 is a deficient number, since it is larger than the sum of its proper divisors (626395).

10648409 is an equidigital number, since it uses as much as digits as its factorization.

10648409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626394.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 10648409 is about 3263.1900036621. The cubic root of 10648409 is about 220.0028167683.

The spelling of 10648409 in words is "ten million, six hundred forty-eight thousand, four hundred nine".