127965479 has 4 divisors (see below), whose sum is σ = 130379976. Its totient is φ = 125550984.

The previous prime is 127965419. The next prime is 127965503. The reversal of 127965479 is 974569721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974569721 = 1123 ⋅867827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127965479 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 (127965419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207169 + ... + 1207274.

It is an arithmetic number, because the mean of its divisors is an integer number (32594994).

Almost surely, 2^127965479 is an apocalyptic number.

127965479 is a deficient number, since it is larger than the sum of its proper divisors (2414497).

127965479 is an equidigital number, since it uses as much as digits as its factorization.

127965479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414496.

The product of its digits is 952560, while the sum is 50.

The square root of 127965479 is about 11312.1827690327. The cubic root of 127965479 is about 503.9231099109.

The spelling of 127965479 in words is "one hundred twenty-seven million, nine hundred sixty-five thousand, four hundred seventy-nine".