127798427 has 4 divisors (see below), whose sum is σ = 134524680. Its totient is φ = 121072176.

The previous prime is 127798417. The next prime is 127798441. The reversal of 127798427 is 724897721.

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

It is a cyclic number.

It is not a de Polignac number, because 127798427 - 2²² = 123604123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127798417) 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, 3363098 + ... + 3363135.

It is an arithmetic number, because the mean of its divisors is an integer number (33631170).

Almost surely, 2^127798427 is an apocalyptic number.

127798427 is a deficient number, since it is larger than the sum of its proper divisors (6726253).

127798427 is an equidigital number, since it uses as much as digits as its factorization.

127798427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726252.

The product of its digits is 395136, while the sum is 47.

The square root of 127798427 is about 11304.7966368263. The cubic root of 127798427 is about 503.7037329820.

The spelling of 127798427 in words is "one hundred twenty-seven million, seven hundred ninety-eight thousand, four hundred twenty-seven".