128677713 has 8 divisors (see below), whose sum is σ = 173498400. Its totient is φ = 84821088.

The previous prime is 128677697. The next prime is 128677729. The reversal of 128677713 is 317776821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (128677697) and next prime (128677729).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128677713 - 2⁴ = 128677697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128677013) 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 7 ways as a sum of consecutive naturals, for example, 240703 + ... + 241236.

It is an arithmetic number, because the mean of its divisors is an integer number (21687300).

Almost surely, 2^128677713 is an apocalyptic number.

It is an amenable number.

128677713 is a deficient number, since it is larger than the sum of its proper divisors (44820687).

128677713 is an equidigital number, since it uses as much as digits as its factorization.

128677713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482031.

The product of its digits is 98784, while the sum is 42.

The square root of 128677713 is about 11343.6199248741. The cubic root of 128677713 is about 504.8562973794.

The spelling of 128677713 in words is "one hundred twenty-eight million, six hundred seventy-seven thousand, seven hundred thirteen".