27475313 has 4 divisors (see below), whose sum is σ = 27485808. Its totient is φ = 27464820.

The previous prime is 27475309. The next prime is 27475319. The reversal of 27475313 is 31357472.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 27475313 - 2² = 27475309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 27475313.

It is not an unprimeable number, because it can be changed into a prime (27475319) 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, 2270 + ... + 7752.

It is an arithmetic number, because the mean of its divisors is an integer number (6871452).

Almost surely, 2^27475313 is an apocalyptic number.

It is an amenable number.

27475313 is a deficient number, since it is larger than the sum of its proper divisors (10495).

27475313 is an equidigital number, since it uses as much as digits as its factorization.

27475313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10494.

The product of its digits is 17640, while the sum is 32.

The square root of 27475313 is about 5241.6898992596. The cubic root of 27475313 is about 301.7501881342.

The spelling of 27475313 in words is "twenty-seven million, four hundred seventy-five thousand, three hundred thirteen".