27975349 has 4 divisors (see below), whose sum is σ = 28369440. Its totient is φ = 27581260.

The previous prime is 27975341. The next prime is 27975371. The reversal of 27975349 is 94357972.

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 27975349 - 2³ = 27975341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27975299 and 27975308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27975341) 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, 196939 + ... + 197080.

It is an arithmetic number, because the mean of its divisors is an integer number (7092360).

Almost surely, 2^27975349 is an apocalyptic number.

It is an amenable number.

27975349 is a deficient number, since it is larger than the sum of its proper divisors (394091).

27975349 is an equidigital number, since it uses as much as digits as its factorization.

27975349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394090.

The product of its digits is 476280, while the sum is 46.

The square root of 27975349 is about 5289.1728086724. The cubic root of 27975349 is about 303.5697579819.

The spelling of 27975349 in words is "twenty-seven million, nine hundred seventy-five thousand, three hundred forty-nine".