27906106 has 4 divisors (see below), whose sum is σ = 41859162. Its totient is φ = 13953052.

The previous prime is 27906031. The next prime is 27906127. The reversal of 27906106 is 60160972.

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

It can be written as a sum of positive squares in only one way, i.e., 26429881 + 1476225 = 5141^2 + 1215^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6976525 + ... + 6976528.

Almost surely, 2^27906106 is an apocalyptic number.

27906106 is a deficient number, since it is larger than the sum of its proper divisors (13953056).

27906106 is a wasteful number, since it uses less digits than its factorization.

27906106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13953055.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 27906106 is about 5282.6230227038. The cubic root of 27906106 is about 303.3190914968.

The spelling of 27906106 in words is "twenty-seven million, nine hundred six thousand, one hundred six".