27475906 has 4 divisors (see below), whose sum is σ = 41213862. Its totient is φ = 13737952.

The previous prime is 27475897. The next prime is 27475909. The reversal of 27475906 is 60957472.

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., 27133681 + 342225 = 5209^2 + 585^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (27475909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6868975 + ... + 6868978.

Almost surely, 2^27475906 is an apocalyptic number.

27475906 is a deficient number, since it is larger than the sum of its proper divisors (13737956).

27475906 is a wasteful number, since it uses less digits than its factorization.

27475906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13737955.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 27475906 is about 5241.7464646814. The cubic root of 27475906 is about 301.7523590112.

The spelling of 27475906 in words is "twenty-seven million, four hundred seventy-five thousand, nine hundred six".