26949009 has 8 divisors (see below), whose sum is σ = 36115200. Its totient is φ = 17874416.

The previous prime is 26948993. The next prime is 26949037. The reversal of 26949009 is 90094962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26949009 - 2⁴ = 26948993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26949059) 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 7 ways as a sum of consecutive naturals, for example, 22209 + ... + 23390.

It is an arithmetic number, because the mean of its divisors is an integer number (4514400).

Almost surely, 2^26949009 is an apocalyptic number.

It is an amenable number.

26949009 is a deficient number, since it is larger than the sum of its proper divisors (9166191).

26949009 is a wasteful number, since it uses less digits than its factorization.

26949009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45799.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 26949009 is about 5191.2434926518. The cubic root of 26949009 is about 299.8110254315.

The spelling of 26949009 in words is "twenty-six million, nine hundred forty-nine thousand, nine".