27208081 has 4 divisors (see below), whose sum is σ = 27231552. Its totient is φ = 27184612.

The previous prime is 27208079. The next prime is 27208127. The reversal of 27208081 is 18080272.

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 27208081 - 2¹ = 27208079 is a prime.

It is a super-2 number, since 2×27208081² = 1480559343405122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27208021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9901 + ... + 12346.

It is an arithmetic number, because the mean of its divisors is an integer number (6807888).

Almost surely, 2^27208081 is an apocalyptic number.

It is an amenable number.

27208081 is a deficient number, since it is larger than the sum of its proper divisors (23471).

27208081 is a wasteful number, since it uses less digits than its factorization.

27208081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23470.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 27208081 is about 5216.1365971378. The cubic root of 27208081 is about 300.7686990274.

It can be divided in two parts, 2720 and 8081, that added together give a palindrome (10801).

The spelling of 27208081 in words is "twenty-seven million, two hundred eight thousand, eighty-one".