127897867 has 4 divisors (see below), whose sum is σ = 130872280. Its totient is φ = 124923456.

The previous prime is 127897853. The next prime is 127897879. The reversal of 127897867 is 768798721.

It is a happy number.

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 127897867 - 2⁷ = 127897739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127897267) 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, 1487142 + ... + 1487227.

It is an arithmetic number, because the mean of its divisors is an integer number (32718070).

Almost surely, 2^127897867 is an apocalyptic number.

127897867 is a deficient number, since it is larger than the sum of its proper divisors (2974413).

127897867 is an equidigital number, since it uses as much as digits as its factorization.

127897867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974412.

The product of its digits is 2370816, while the sum is 55.

The square root of 127897867 is about 11309.1939146873. The cubic root of 127897867 is about 503.8343431279.

The spelling of 127897867 in words is "one hundred twenty-seven million, eight hundred ninety-seven thousand, eight hundred sixty-seven".