27870913 has 8 divisors (see below), whose sum is σ = 32181632. Its totient is φ = 23642496.

The previous prime is 27870893. The next prime is 27870919. The reversal of 27870913 is 31907872.

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 27870913 - 2¹⁷ = 27739841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27870919) 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 7 ways as a sum of consecutive naturals, for example, 19845 + ... + 21202.

It is an arithmetic number, because the mean of its divisors is an integer number (4022704).

Almost surely, 2^27870913 is an apocalyptic number.

It is an amenable number.

27870913 is a deficient number, since it is larger than the sum of its proper divisors (4310719).

27870913 is an equidigital number, since it uses as much as digits as its factorization.

27870913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41151.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 27870913 is about 5279.2909561796. The cubic root of 27870913 is about 303.1915304139.

The spelling of 27870913 in words is "twenty-seven million, eight hundred seventy thousand, nine hundred thirteen".