26816117 has 4 divisors (see below), whose sum is σ = 26841120. Its totient is φ = 26791116.

The previous prime is 26816099. The next prime is 26816131. The reversal of 26816117 is 71161862.

It is a happy number.

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 not a de Polignac number, because 26816117 - 2¹⁴ = 26799733 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 (26816197) 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, 10817 + ... + 13062.

It is an arithmetic number, because the mean of its divisors is an integer number (6710280).

Almost surely, 2^26816117 is an apocalyptic number.

It is an amenable number.

26816117 is a deficient number, since it is larger than the sum of its proper divisors (25003).

26816117 is a wasteful number, since it uses less digits than its factorization.

26816117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25002.

The product of its digits is 4032, while the sum is 32.

The square root of 26816117 is about 5178.4280433352. The cubic root of 26816117 is about 299.3173998868.

Adding to 26816117 its reverse (71161862), we get a palindrome (97977979).

The spelling of 26816117 in words is "twenty-six million, eight hundred sixteen thousand, one hundred seventeen".