127807869 has 12 divisors (see below), whose sum is σ = 194833824. Its totient is φ = 73003464.

The previous prime is 127807831. The next prime is 127807873. The reversal of 127807869 is 968708721.

It is not a de Polignac number, because 127807869 - 2⁸ = 127807613 is a prime.

It is a super-2 number, since 2×127807869² = 32669702756642322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127807829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50574 + ... + 53040.

It is an arithmetic number, because the mean of its divisors is an integer number (16236152).

Almost surely, 2^127807869 is an apocalyptic number.

It is an amenable number.

127807869 is a deficient number, since it is larger than the sum of its proper divisors (67025955).

127807869 is an frugal number, since it uses more digits than its factorization.

127807869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 127807869 is about 11305.2142394561. The cubic root of 127807869 is about 503.7161375518.

The spelling of 127807869 in words is "one hundred twenty-seven million, eight hundred seven thousand, eight hundred sixty-nine".