127297967 has 4 divisors (see below), whose sum is σ = 133997880. Its totient is φ = 120598056.

The previous prime is 127297927. The next prime is 127297979. The reversal of 127297967 is 769792721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769792721 = 71 ⋅10842151.

It is a cyclic number.

It is not a de Polignac number, because 127297967 - 2⁶ = 127297903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127297927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349928 + ... + 3349965.

It is an arithmetic number, because the mean of its divisors is an integer number (33499470).

Almost surely, 2^127297967 is an apocalyptic number.

127297967 is a deficient number, since it is larger than the sum of its proper divisors (6699913).

127297967 is an equidigital number, since it uses as much as digits as its factorization.

127297967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699912.

The product of its digits is 666792, while the sum is 50.

The square root of 127297967 is about 11282.6400722526. The cubic root of 127297967 is about 503.0453697876.

The spelling of 127297967 in words is "one hundred twenty-seven million, two hundred ninety-seven thousand, nine hundred sixty-seven".