128976910 has 16 divisors (see below), whose sum is σ = 232300512. Its totient is φ = 51559200.

The previous prime is 128976889. The next prime is 128976919. The reversal of 128976910 is 19679821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128976919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20320 + ... + 25900.

It is an arithmetic number, because the mean of its divisors is an integer number (14518782).

Almost surely, 2^128976910 is an apocalyptic number.

128976910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128976910 is a deficient number, since it is larger than the sum of its proper divisors (103323602).

128976910 is a wasteful number, since it uses less digits than its factorization.

128976910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 128976910 is about 11356.8001655396. The cubic root of 128976910 is about 505.2472860073.

The spelling of 128976910 in words is "one hundred twenty-eight million, nine hundred seventy-six thousand, nine hundred ten".