26230009 has 4 divisors (see below), whose sum is σ = 28247716. Its totient is φ = 24212304.

The previous prime is 26229979. The next prime is 26230021. The reversal of 26230009 is 90003262.

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 14175225 + 12054784 = 3765^2 + 3472^2 .

It is a cyclic number.

It is not a de Polignac number, because 26230009 - 2¹⁷ = 26098937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26230049) 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, 1008834 + ... + 1008859.

It is an arithmetic number, because the mean of its divisors is an integer number (7061929).

Almost surely, 2^26230009 is an apocalyptic number.

It is an amenable number.

26230009 is a deficient number, since it is larger than the sum of its proper divisors (2017707).

26230009 is a wasteful number, since it uses less digits than its factorization.

26230009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017706.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 26230009 is about 5121.5240895655. The cubic root of 26230009 is about 297.1206340695.

The spelling of 26230009 in words is "twenty-six million, two hundred thirty thousand, nine".