128843398 has 8 divisors (see below), whose sum is σ = 198488592. Its totient is φ = 62680536.

The previous prime is 128843387. The next prime is 128843399. The reversal of 128843398 is 893348821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128843399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870490 + ... + 870637.

It is an arithmetic number, because the mean of its divisors is an integer number (24811074).

Almost surely, 2^128843398 is an apocalyptic number.

128843398 is a deficient number, since it is larger than the sum of its proper divisors (69645194).

128843398 is a wasteful number, since it uses less digits than its factorization.

128843398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741166.

The product of its digits is 331776, while the sum is 46.

The square root of 128843398 is about 11350.9205794068. The cubic root of 128843398 is about 505.0728882147.

The spelling of 128843398 in words is "one hundred twenty-eight million, eight hundred forty-three thousand, three hundred ninety-eight".