27121408 has 18 divisors (see below), whose sum is σ = 54137384. Its totient is φ = 13560576.

The previous prime is 27121403. The next prime is 27121421. The reversal of 27121408 is 80412172.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27121403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52716 + ... + 53227.

Almost surely, 2^27121408 is an apocalyptic number.

It is an amenable number.

27121408 is a deficient number, since it is larger than the sum of its proper divisors (27015976).

27121408 is an equidigital number, since it uses as much as digits as its factorization.

27121408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105959 (or 105945 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 27121408 is about 5207.8218095476. The cubic root of 27121408 is about 300.4489869597.

The spelling of 27121408 in words is "twenty-seven million, one hundred twenty-one thousand, four hundred eight".