27940906 has 32 divisors (see below), whose sum is σ = 52623360. Its totient is φ = 10848816.

The previous prime is 27940903. The next prime is 27940907. The reversal of 27940906 is 60904972.

It is not an unprimeable number, because it can be changed into a prime (27940901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3835 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (1644480).

Almost surely, 2^27940906 is an apocalyptic number.

27940906 is a deficient number, since it is larger than the sum of its proper divisors (24682454).

27940906 is a wasteful number, since it uses less digits than its factorization.

27940906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 27940906 is about 5285.9158146910. The cubic root of 27940906 is about 303.4451226924.

The spelling of 27940906 in words is "twenty-seven million, nine hundred forty thousand, nine hundred six".