26608081 has 4 divisors (see below), whose sum is σ = 26683812. Its totient is φ = 26532352.

The previous prime is 26608007. The next prime is 26608103. The reversal of 26608081 is 18080662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18080662 = 2 ⋅9040331.

It can be written as a sum of positive squares in 2 ways, for example, as 18105025 + 8503056 = 4255^2 + 2916^2 .

It is a cyclic number.

It is not a de Polignac number, because 26608081 - 2¹³ = 26599889 is a prime.

It is a super-3 number, since 3×26608081³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26608481) 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, 37336 + ... + 38041.

It is an arithmetic number, because the mean of its divisors is an integer number (6670953).

Almost surely, 2^26608081 is an apocalyptic number.

It is an amenable number.

26608081 is a deficient number, since it is larger than the sum of its proper divisors (75731).

26608081 is an equidigital number, since it uses as much as digits as its factorization.

26608081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75730.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 26608081 is about 5158.3021431475. The cubic root of 26608081 is about 298.5413676141.

The spelling of 26608081 in words is "twenty-six million, six hundred eight thousand, eighty-one".