27538906 has 8 divisors (see below), whose sum is σ = 42087924. Its totient is φ = 13509600.

The previous prime is 27538897. The next prime is 27538919. The reversal of 27538906 is 60983572.

It can be written as a sum of positive squares in 2 ways, for example, as 24950025 + 2588881 = 4995^2 + 1609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 129795 + ... + 130006.

Almost surely, 2^27538906 is an apocalyptic number.

27538906 is a deficient number, since it is larger than the sum of its proper divisors (14549018).

27538906 is a wasteful number, since it uses less digits than its factorization.

27538906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259856.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 27538906 is about 5247.7524712966. The cubic root of 27538906 is about 301.9828141032.

The spelling of 27538906 in words is "twenty-seven million, five hundred thirty-eight thousand, nine hundred six".