127864799 has 6 divisors (see below), whose sum is σ = 132426840. Its totient is φ = 123454856.

The previous prime is 127864771. The next prime is 127864817. The reversal of 127864799 is 997468721.

It is not a de Polignac number, because 127864799 - 2²⁰ = 126816223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127864799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127864729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75179 + ... + 76860.

It is an arithmetic number, because the mean of its divisors is an integer number (22071140).

Almost surely, 2^127864799 is an apocalyptic number.

127864799 is a deficient number, since it is larger than the sum of its proper divisors (4562041).

127864799 is an equidigital number, since it uses as much as digits as its factorization.

127864799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152097 (or 152068 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The square root of 127864799 is about 11307.7318238451. The cubic root of 127864799 is about 503.7909172535.

The spelling of 127864799 in words is "one hundred twenty-seven million, eight hundred sixty-four thousand, seven hundred ninety-nine".