128683335 has 16 divisors (see below), whose sum is σ = 224611200. Its totient is φ = 62391840.

The previous prime is 128683309. The next prime is 128683339. The reversal of 128683335 is 533386821.

It is not a de Polignac number, because 128683335 - 2²² = 124489031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128683293 and 128683302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128683339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389785 + ... + 390114.

It is an arithmetic number, because the mean of its divisors is an integer number (14038200).

Almost surely, 2^128683335 is an apocalyptic number.

128683335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128683335 is a deficient number, since it is larger than the sum of its proper divisors (95927865).

128683335 is a wasteful number, since it uses less digits than its factorization.

128683335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779918.

The product of its digits is 103680, while the sum is 39.

The square root of 128683335 is about 11343.8677266618. The cubic root of 128683335 is about 504.8636497554.

The spelling of 128683335 in words is "one hundred twenty-eight million, six hundred eighty-three thousand, three hundred thirty-five".