26648317 has 4 divisors (see below), whose sum is σ = 28050880. Its totient is φ = 25245756.

The previous prime is 26648311. The next prime is 26648327. The reversal of 26648317 is 71384662.

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 an emirpimes, since its reverse is a distinct semiprime: 71384662 = 2 ⋅35692331.

It is not a de Polignac number, because 26648317 - 2¹⁹ = 26124029 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 (26648311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701253 + ... + 701290.

It is an arithmetic number, because the mean of its divisors is an integer number (7012720).

Almost surely, 2^26648317 is an apocalyptic number.

It is an amenable number.

26648317 is a deficient number, since it is larger than the sum of its proper divisors (1402563).

26648317 is a wasteful number, since it uses less digits than its factorization.

26648317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402562.

The product of its digits is 48384, while the sum is 37.

The square root of 26648317 is about 5162.2007903606. The cubic root of 26648317 is about 298.6917738103.

The spelling of 26648317 in words is "twenty-six million, six hundred forty-eight thousand, three hundred seventeen".