10858909 has 4 divisors (see below), whose sum is σ = 10893916. Its totient is φ = 10823904.

The previous prime is 10858901. The next prime is 10858933. The reversal of 10858909 is 90985801.

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 2576025 + 8282884 = 1605^2 + 2878^2 .

It is a cyclic number.

It is not a de Polignac number, because 10858909 - 2³ = 10858901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10858901) 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, 17034 + ... + 17659.

It is an arithmetic number, because the mean of its divisors is an integer number (2723479).

Almost surely, 2^10858909 is an apocalyptic number.

It is an amenable number.

10858909 is a deficient number, since it is larger than the sum of its proper divisors (35007).

10858909 is an equidigital number, since it uses as much as digits as its factorization.

10858909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35006.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 10858909 is about 3295.2858753073. The cubic root of 10858909 is about 221.4430551350.

The spelling of 10858909 in words is "ten million, eight hundred fifty-eight thousand, nine hundred nine".