27845413 has 4 divisors (see below), whose sum is σ = 28012320. Its totient is φ = 27678508.

The previous prime is 27845407. The next prime is 27845429. The reversal of 27845413 is 31454872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27845413 - 2¹³ = 27837221 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 (27845513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83203 + ... + 83536.

It is an arithmetic number, because the mean of its divisors is an integer number (7003080).

Almost surely, 2^27845413 is an apocalyptic number.

It is an amenable number.

27845413 is a deficient number, since it is larger than the sum of its proper divisors (166907).

27845413 is a wasteful number, since it uses less digits than its factorization.

27845413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166906.

The product of its digits is 26880, while the sum is 34.

The square root of 27845413 is about 5276.8753064669. The cubic root of 27845413 is about 303.0990356193.

The spelling of 27845413 in words is "twenty-seven million, eight hundred forty-five thousand, four hundred thirteen".