127983996 has 192 divisors, whose sum is σ = 403701760. Its totient is φ = 34292160.

The previous prime is 127983991. The next prime is 127984009. The reversal of 127983996 is 699389721.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127983991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1007685 + ... + 1007811.

Almost surely, 2^127983996 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 127983996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201850880).

127983996 is an abundant number, since it is smaller than the sum of its proper divisors (275717764).

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

127983996 is a wasteful number, since it uses less digits than its factorization.

127983996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 213 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 127983996 is about 11313.0011933174. The cubic root of 127983996 is about 503.9474151487.

The spelling of 127983996 in words is "one hundred twenty-seven million, nine hundred eighty-three thousand, nine hundred ninety-six".