27932906 has 4 divisors (see below), whose sum is σ = 41899362. Its totient is φ = 13966452.

The previous prime is 27932867. The next prime is 27932909. The reversal of 27932906 is 60923972.

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., 27931225 + 1681 = 5285^2 + 41^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27932906.

It is not an unprimeable number, because it can be changed into a prime (27932909) 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 as a sum of consecutive naturals, namely, 6983225 + ... + 6983228.

Almost surely, 2^27932906 is an apocalyptic number.

27932906 is a deficient number, since it is larger than the sum of its proper divisors (13966456).

27932906 is a wasteful number, since it uses less digits than its factorization.

27932906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13966455.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 27932906 is about 5285.1590326120. The cubic root of 27932906 is about 303.4161592710.

The spelling of 27932906 in words is "twenty-seven million, nine hundred thirty-two thousand, nine hundred six".