26368009 has 2 divisors, whose sum is σ = 26368010. Its totient is φ = 26368008.

The previous prime is 26367983. The next prime is 26368019. The reversal of 26368009 is 90086362.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21206025 + 5161984 = 4605^2 + 2272^2 .

It is a cyclic number.

It is not a de Polignac number, because 26368009 - 2⁷ = 26367881 is a prime.

It is not a weakly prime, because it can be changed into another prime (26368019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13184004 + 13184005.

It is an arithmetic number, because the mean of its divisors is an integer number (13184005).

Almost surely, 2^26368009 is an apocalyptic number.

It is an amenable number.

26368009 is a deficient number, since it is larger than the sum of its proper divisors (1).

26368009 is an equidigital number, since it uses as much as digits as its factorization.

26368009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 26368009 is about 5134.9789678245. The cubic root of 26368009 is about 297.6407882933.

The spelling of 26368009 in words is "twenty-six million, three hundred sixty-eight thousand, nine".