128830934 has 16 divisors (see below), whose sum is σ = 200210400. Its totient is φ = 62100864.

The previous prime is 128830931. The next prime is 128830937. The reversal of 128830934 is 439038821.

It is an interprime number because it is at equal distance from previous prime (128830931) and next prime (128830937).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128830931) 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, 52094 + ... + 54510.

It is an arithmetic number, because the mean of its divisors is an integer number (12513150).

Almost surely, 2^128830934 is an apocalyptic number.

128830934 is a deficient number, since it is larger than the sum of its proper divisors (71379466).

128830934 is a wasteful number, since it uses less digits than its factorization.

128830934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 128830934 is about 11350.3715357692. The cubic root of 128830934 is about 505.0566011780.

The spelling of 128830934 in words is "one hundred twenty-eight million, eight hundred thirty thousand, nine hundred thirty-four".