127947 has 4 divisors (see below), whose sum is σ = 170600. Its totient is φ = 85296.

The previous prime is 127931. The next prime is 127951. The reversal of 127947 is 749721.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 127947 - 2⁴ = 127931 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127997) 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, 21322 + ... + 21327.

It is an arithmetic number, because the mean of its divisors is an integer number (42650).

2¹²⁷⁹⁴⁷ is an apocalyptic number.

127947 is a deficient number, since it is larger than the sum of its proper divisors (42653).

127947 is an equidigital number, since it uses as much as digits as its factorization.

127947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42652.

The product of its digits is 3528, while the sum is 30.

The square root of 127947 is about 357.6967989792. The cubic root of 127947 is about 50.3898852214.

It can be divided in two parts, 1279 and 47, that added together give a triangular number (1326 = T₅₁).

The spelling of 127947 in words is "one hundred twenty-seven thousand, nine hundred forty-seven".