127987794 has 24 divisors (see below), whose sum is σ = 302517072. Its totient is φ = 38784120.

The previous prime is 127987793. The next prime is 127987807. The reversal of 127987794 is 497789721.

It is a self number, because there is not a number n which added to its sum of digits gives 127987794.

It is not an unprimeable number, because it can be changed into a prime (127987793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323004 + ... + 323399.

It is an arithmetic number, because the mean of its divisors is an integer number (12604878).

Almost surely, 2^127987794 is an apocalyptic number.

127987794 is an abundant number, since it is smaller than the sum of its proper divisors (174529278).

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

127987794 is a wasteful number, since it uses less digits than its factorization.

127987794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646422 (or 646419 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 54.

The square root of 127987794 is about 11313.1690520384. The cubic root of 127987794 is about 503.9524000775.

The spelling of 127987794 in words is "one hundred twenty-seven million, nine hundred eighty-seven thousand, seven hundred ninety-four".