26808123 has 4 divisors (see below), whose sum is σ = 35744168. Its totient is φ = 17872080.

The previous prime is 26808083. The next prime is 26808139. The reversal of 26808123 is 32180862.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 26808123 - 2⁶ = 26808059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26808143) 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, 4468018 + ... + 4468023.

It is an arithmetic number, because the mean of its divisors is an integer number (8936042).

Almost surely, 2^26808123 is an apocalyptic number.

26808123 is a deficient number, since it is larger than the sum of its proper divisors (8936045).

26808123 is an equidigital number, since it uses as much as digits as its factorization.

26808123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8936044.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 26808123 is about 5177.6561299491. The cubic root of 26808123 is about 299.2876543287.

Adding to 26808123 its reverse (32180862), we get a palindrome (58988985).

The spelling of 26808123 in words is "twenty-six million, eight hundred eight thousand, one hundred twenty-three".