127908864 has 66 divisors (see below), whose sum is σ = 369360680. Its totient is φ = 42633216.

The previous prime is 127908827. The next prime is 127908877. The reversal of 127908864 is 468809721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2277 + ... + 16155.

Almost surely, 2^127908864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127908864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184680340).

127908864 is an abundant number, since it is smaller than the sum of its proper divisors (241451816).

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

127908864 is a wasteful number, since it uses less digits than its factorization.

127908864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13905 (or 13884 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 127908864 is about 11309.6801015767. The cubic root of 127908864 is about 503.8487830546.

The spelling of 127908864 in words is "one hundred twenty-seven million, nine hundred eight thousand, eight hundred sixty-four".