27940904 has 16 divisors (see below), whose sum is σ = 52658100. Its totient is φ = 13898752.

The previous prime is 27940903. The next prime is 27940907. The reversal of 27940904 is 40904972.

It can be written as a sum of positive squares in 2 ways, for example, as 23522500 + 4418404 = 4850^2 + 2102^2 .

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7289 + ... + 10440.

Almost surely, 2^27940904 is an apocalyptic number.

It is an amenable number.

27940904 is a deficient number, since it is larger than the sum of its proper divisors (24717196).

27940904 is a wasteful number, since it uses less digits than its factorization.

27940904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17932 (or 17928 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 27940904 is about 5285.9156255090. The cubic root of 27940904 is about 303.4451154523.

The spelling of 27940904 in words is "twenty-seven million, nine hundred forty thousand, nine hundred four".