26217413 has 4 divisors (see below), whose sum is σ = 27063168. Its totient is φ = 25371660.

The previous prime is 26217391. The next prime is 26217427. The reversal of 26217413 is 31471262.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26217413 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 (26217463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422831 + ... + 422892.

It is an arithmetic number, because the mean of its divisors is an integer number (6765792).

Almost surely, 2^26217413 is an apocalyptic number.

It is an amenable number.

26217413 is a deficient number, since it is larger than the sum of its proper divisors (845755).

26217413 is an equidigital number, since it uses as much as digits as its factorization.

26217413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845754.

The product of its digits is 2016, while the sum is 26.

The square root of 26217413 is about 5120.2942298270. The cubic root of 26217413 is about 297.0730660245.

Adding to 26217413 its reverse (31471262), we get a palindrome (57688675).

The spelling of 26217413 in words is "twenty-six million, two hundred seventeen thousand, four hundred thirteen".