128823676 has 6 divisors (see below), whose sum is σ = 225441440. Its totient is φ = 64411836.

The previous prime is 128823659. The next prime is 128823679. The reversal of 128823676 is 676328821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128823679) 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 as a sum of consecutive naturals, namely, 16102956 + ... + 16102963.

Almost surely, 2^128823676 is an apocalyptic number.

It is an amenable number.

128823676 is a deficient number, since it is larger than the sum of its proper divisors (96617764).

128823676 is a wasteful number, since it uses less digits than its factorization.

128823676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32205923 (or 32205921 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 128823676 is about 11350.0518060492. The cubic root of 128823676 is about 505.0471164744.

It can be divided in two parts, 1288 and 23676, that added together give a square (24964 = 158²).

The spelling of 128823676 in words is "one hundred twenty-eight million, eight hundred twenty-three thousand, six hundred seventy-six".