128683748 has 24 divisors (see below), whose sum is σ = 231907200. Its totient is φ = 62441280.

The previous prime is 128683741. The next prime is 128683757. The reversal of 128683748 is 847386821.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (128683741) 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, 30665 + ... + 34607.

It is an arithmetic number, because the mean of its divisors is an integer number (9662800).

Almost surely, 2^128683748 is an apocalyptic number.

It is an amenable number.

128683748 is a deficient number, since it is larger than the sum of its proper divisors (103223452).

128683748 is a wasteful number, since it uses less digits than its factorization.

128683748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187 (or 4185 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 128683748 is about 11343.8859303151. The cubic root of 128683748 is about 504.8641898628.

The spelling of 128683748 in words is "one hundred twenty-eight million, six hundred eighty-three thousand, seven hundred forty-eight".