127279427 has 4 divisors (see below), whose sum is σ = 138850296. Its totient is φ = 115708560.

The previous prime is 127279403. The next prime is 127279433. The reversal of 127279427 is 724972721.

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

It is not a de Polignac number, because 127279427 - 2⁶ = 127279363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127279487) 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, 5785418 + ... + 5785439.

It is an arithmetic number, because the mean of its divisors is an integer number (34712574).

Almost surely, 2^127279427 is an apocalyptic number.

127279427 is a deficient number, since it is larger than the sum of its proper divisors (11570869).

127279427 is a wasteful number, since it uses less digits than its factorization.

127279427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11570868.

The product of its digits is 98784, while the sum is 41.

The square root of 127279427 is about 11281.8184261226. The cubic root of 127279427 is about 503.0209469991.

The spelling of 127279427 in words is "one hundred twenty-seven million, two hundred seventy-nine thousand, four hundred twenty-seven".