128596863 has 4 divisors (see below), whose sum is σ = 171462488. Its totient is φ = 85731240.

The previous prime is 128596843. The next prime is 128596879. The reversal of 128596863 is 368695821.

It is a happy number.

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

It is not a de Polignac number, because 128596863 - 2⁸ = 128596607 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 (128596843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21432808 + ... + 21432813.

It is an arithmetic number, because the mean of its divisors is an integer number (42865622).

Almost surely, 2^128596863 is an apocalyptic number.

128596863 is a deficient number, since it is larger than the sum of its proper divisors (42865625).

128596863 is an equidigital number, since it uses as much as digits as its factorization.

128596863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42865624.

The product of its digits is 622080, while the sum is 48.

The square root of 128596863 is about 11340.0556876940. The cubic root of 128596863 is about 504.7505391445.

The spelling of 128596863 in words is "one hundred twenty-eight million, five hundred ninety-six thousand, eight hundred sixty-three".