127983397 has 8 divisors (see below), whose sum is σ = 132364800. Its totient is φ = 123671184.
The previous prime is 127983391. The next prime is 127983403. The reversal of 127983397 is 793389721.
It is an interprime number because it is at equal distance from previous prime (127983391) and next prime (127983403).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 127983397 - 211 = 127981349 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 127983397.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (127983391) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13522 + ... + 20947.
It is an arithmetic number, because the mean of its divisors is an integer number (16545600).
Almost surely, 2127983397 is an apocalyptic number.
It is an amenable number.
127983397 is a deficient number, since it is larger than the sum of its proper divisors (4381403).
127983397 is an equidigital number, since it uses as much as digits as its factorization.
127983397 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34595.
The product of its digits is 571536, while the sum is 49.
The square root of 127983397 is about 11312.9747193212. The cubic root of 127983397 is about 503.9466289437.
The spelling of 127983397 in words is "one hundred twenty-seven million, nine hundred eighty-three thousand, three hundred ninety-seven".
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