127664363 has 4 divisors (see below), whose sum is σ = 134383560. Its totient is φ = 120945168.

The previous prime is 127664357. The next prime is 127664387. The reversal of 127664363 is 363466721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127664363 - 2¹⁶ = 127598827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127664353) 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, 3359570 + ... + 3359607.

It is an arithmetic number, because the mean of its divisors is an integer number (33595890).

Almost surely, 2^127664363 is an apocalyptic number.

127664363 is a deficient number, since it is larger than the sum of its proper divisors (6719197).

127664363 is an equidigital number, since it uses as much as digits as its factorization.

127664363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719196.

The product of its digits is 108864, while the sum is 38.

The square root of 127664363 is about 11298.8655625244. The cubic root of 127664363 is about 503.5275384187.

The spelling of 127664363 in words is "one hundred twenty-seven million, six hundred sixty-four thousand, three hundred sixty-three".