127680973 has 4 divisors (see below), whose sum is σ = 145921120. Its totient is φ = 109440828.

The previous prime is 127680961. The next prime is 127680979. The reversal of 127680973 is 379086721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 379086721 = 13 ⋅29160517.

It is not a de Polignac number, because 127680973 - 2⁹ = 127680461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127680979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9120063 + ... + 9120076.

It is an arithmetic number, because the mean of its divisors is an integer number (36480280).

Almost surely, 2^127680973 is an apocalyptic number.

It is an amenable number.

127680973 is a deficient number, since it is larger than the sum of its proper divisors (18240147).

127680973 is an equidigital number, since it uses as much as digits as its factorization.

127680973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18240146.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 127680973 is about 11299.6005681617. The cubic root of 127680973 is about 503.5493749217.

The spelling of 127680973 in words is "one hundred twenty-seven million, six hundred eighty thousand, nine hundred seventy-three".