27954121 has 12 divisors (see below), whose sum is σ = 30436560. Its totient is φ = 25662000.

The previous prime is 27954107. The next prime is 27954133. The reversal of 27954121 is 12145972.

It is not a de Polignac number, because 27954121 - 2⁵ = 27954089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27954181) 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 in 11 ways as a sum of consecutive naturals, for example, 42090 + ... + 42748.

It is an arithmetic number, because the mean of its divisors is an integer number (2536380).

Almost surely, 2^27954121 is an apocalyptic number.

It is an amenable number.

27954121 is a deficient number, since it is larger than the sum of its proper divisors (2482439).

27954121 is a wasteful number, since it uses less digits than its factorization.

27954121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 923 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 27954121 is about 5287.1656868307. The cubic root of 27954121 is about 303.4929545376.

The spelling of 27954121 in words is "twenty-seven million, nine hundred fifty-four thousand, one hundred twenty-one".