10280009 has 4 divisors (see below), whose sum is σ = 10287360. Its totient is φ = 10272660.

The previous prime is 10279991. The next prime is 10280027. The reversal of 10280009 is 90008201.

10280009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (10279991) and next prime (10280027).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10280009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10280059) 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, 857 + ... + 4614.

It is an arithmetic number, because the mean of its divisors is an integer number (2571840).

Almost surely, 2^10280009 is an apocalyptic number.

It is an amenable number.

10280009 is a deficient number, since it is larger than the sum of its proper divisors (7351).

10280009 is an equidigital number, since it uses as much as digits as its factorization.

10280009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7350.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 10280009 is about 3206.2453118874. The cubic root of 10280009 is about 217.4358572471.

The spelling of 10280009 in words is "ten million, two hundred eighty thousand, nine".