128603934 has 48 divisors (see below), whose sum is σ = 295451520. Its totient is φ = 40357440.

The previous prime is 128603911. The next prime is 128603953. The reversal of 128603934 is 439306821.

128603934 is a `hidden beast` number, since 12 + 8 + 603 + 9 + 34 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17532 + ... + 23760.

It is an arithmetic number, because the mean of its divisors is an integer number (6155240).

Almost surely, 2^128603934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128603934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147725760).

128603934 is an abundant number, since it is smaller than the sum of its proper divisors (166847586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128603934 is a wasteful number, since it uses less digits than its factorization.

128603934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305 (or 6302 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 128603934 is about 11340.3674543641. The cubic root of 128603934 is about 504.7597903439.

The spelling of 128603934 in words is "one hundred twenty-eight million, six hundred three thousand, nine hundred thirty-four".