128876629 has 8 divisors (see below), whose sum is σ = 147465920. Its totient is φ = 110331936.

The previous prime is 128876617. The next prime is 128876663. The reversal of 128876629 is 926678821.

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

It is a cyclic number.

It is not a de Polignac number, because 128876629 - 2¹³ = 128868437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128876669) 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 7 ways as a sum of consecutive naturals, for example, 4704 + ... + 16729.

It is an arithmetic number, because the mean of its divisors is an integer number (18433240).

Almost surely, 2^128876629 is an apocalyptic number.

It is an amenable number.

128876629 is a deficient number, since it is larger than the sum of its proper divisors (18589291).

128876629 is an equidigital number, since it uses as much as digits as its factorization.

128876629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22299.

The product of its digits is 580608, while the sum is 49.

The square root of 128876629 is about 11352.3842870121. The cubic root of 128876629 is about 505.1163069040.

The spelling of 128876629 in words is "one hundred twenty-eight million, eight hundred seventy-six thousand, six hundred twenty-nine".