127947713 has 4 divisors (see below), whose sum is σ = 127979220. Its totient is φ = 127916208.

The previous prime is 127947697. The next prime is 127947727. The reversal of 127947713 is 317749721.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16265089 + 111682624 = 4033^2 + 10568^2 .

It is a cyclic number.

It is not a de Polignac number, because 127947713 - 2⁴ = 127947697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127947773) 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, 8570 + ... + 18147.

It is an arithmetic number, because the mean of its divisors is an integer number (31994805).

Almost surely, 2^127947713 is an apocalyptic number.

It is an amenable number.

127947713 is a deficient number, since it is larger than the sum of its proper divisors (31507).

127947713 is an equidigital number, since it uses as much as digits as its factorization.

127947713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31506.

The product of its digits is 74088, while the sum is 41.

The square root of 127947713 is about 11311.3974821858. The cubic root of 127947713 is about 503.8997882245.

The spelling of 127947713 in words is "one hundred twenty-seven million, nine hundred forty-seven thousand, seven hundred thirteen".