128339703 has 24 divisors (see below), whose sum is σ = 192507120. Its totient is φ = 82293120.

The previous prime is 128339689. The next prime is 128339707. The reversal of 128339703 is 307933821.

It is a happy number.

It is not a de Polignac number, because 128339703 - 2²⁴ = 111562487 is a prime.

It is a super-2 number, since 2×128339703² = 32942158732256418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128339707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80908 + ... + 82478.

It is an arithmetic number, because the mean of its divisors is an integer number (8021130).

Almost surely, 2^128339703 is an apocalyptic number.

128339703 is a deficient number, since it is larger than the sum of its proper divisors (64167417).

128339703 is a wasteful number, since it uses less digits than its factorization.

128339703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919 (or 1916 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 128339703 is about 11328.7114448202. The cubic root of 128339703 is about 504.4138583864.

The spelling of 128339703 in words is "one hundred twenty-eight million, three hundred thirty-nine thousand, seven hundred three".