27959121 has 16 divisors (see below), whose sum is σ = 41513920. Its totient is φ = 18597600.

The previous prime is 27959119. The next prime is 27959137. The reversal of 27959121 is 12195972.

It is not a de Polignac number, because 27959121 - 2¹ = 27959119 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27959111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15366 + ... + 17088.

It is an arithmetic number, because the mean of its divisors is an integer number (2594620).

Almost surely, 2^27959121 is an apocalyptic number.

It is an amenable number.

27959121 is a deficient number, since it is larger than the sum of its proper divisors (13554799).

27959121 is a wasteful number, since it uses less digits than its factorization.

27959121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333 (or 2327 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 27959121 is about 5287.6385088241. The cubic root of 27959121 is about 303.5110481645.

The spelling of 27959121 in words is "twenty-seven million, nine hundred fifty-nine thousand, one hundred twenty-one".