128908714 has 8 divisors (see below), whose sum is σ = 210941568. Its totient is φ = 58594860.

The previous prime is 128908699. The next prime is 128908727. The reversal of 128908714 is 417809821.

It is a happy number.

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

It is an unprimeable number.

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, 2929722 + ... + 2929765.

It is an arithmetic number, because the mean of its divisors is an integer number (26367696).

Almost surely, 2^128908714 is an apocalyptic number.

128908714 is a deficient number, since it is larger than the sum of its proper divisors (82032854).

128908714 is a wasteful number, since it uses less digits than its factorization.

128908714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5859500.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 128908714 is about 11353.7973383358. The cubic root of 128908714 is about 505.1582211804.

The spelling of 128908714 in words is "one hundred twenty-eight million, nine hundred eight thousand, seven hundred fourteen".