27843401 has 4 divisors (see below), whose sum is σ = 27854532. Its totient is φ = 27832272.

The previous prime is 27843371. The next prime is 27843419. The reversal of 27843401 is 10434872.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 270400 + 27573001 = 520^2 + 5251^2 .

It is a cyclic number.

It is not a de Polignac number, because 27843401 - 2⁶ = 27843337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27843421) 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 3 ways as a sum of consecutive naturals, for example, 131 + ... + 7463.

It is an arithmetic number, because the mean of its divisors is an integer number (6963633).

Almost surely, 2^27843401 is an apocalyptic number.

It is an amenable number.

27843401 is a deficient number, since it is larger than the sum of its proper divisors (11131).

27843401 is an equidigital number, since it uses as much as digits as its factorization.

27843401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 27843401 is about 5276.6846598977. The cubic root of 27843401 is about 303.0917351955.

The spelling of 27843401 in words is "twenty-seven million, eight hundred forty-three thousand, four hundred one".