27475021 has 8 divisors (see below), whose sum is σ = 32413184. Its totient is φ = 22790160.

The previous prime is 27475013. The next prime is 27475027. The reversal of 27475021 is 12057472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27475021 - 2³ = 27475013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27475027) 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 7 ways as a sum of consecutive naturals, for example, 63090 + ... + 63523.

It is an arithmetic number, because the mean of its divisors is an integer number (4051648).

Almost surely, 2^27475021 is an apocalyptic number.

It is an amenable number.

27475021 is a deficient number, since it is larger than the sum of its proper divisors (4938163).

27475021 is a wasteful number, since it uses less digits than its factorization.

27475021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126651.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 27475021 is about 5241.6620455729. The cubic root of 27475021 is about 301.7491191580.

The spelling of 27475021 in words is "twenty-seven million, four hundred seventy-five thousand, twenty-one".