127864 has 16 divisors (see below), whose sum is σ = 261720. Its totient is φ = 58080.

The previous prime is 127859. The next prime is 127867. The reversal of 127864 is 468721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639 + ... + 814.

2¹²⁷⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

127864 is an abundant number, since it is smaller than the sum of its proper divisors (133856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127864 is a wasteful number, since it uses less digits than its factorization.

127864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1466 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 127864 is about 357.5807601088. The cubic root of 127864 is about 50.3789867890.

The spelling of 127864 in words is "one hundred twenty-seven thousand, eight hundred sixty-four".