128393935 has 8 divisors (see below), whose sum is σ = 160771680. Its totient is φ = 98249184.

The previous prime is 128393917. The next prime is 128393939. The reversal of 128393935 is 539393821.

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

It is a cyclic number.

It is not a de Polignac number, because 128393935 - 2⁷ = 128393807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128393891 and 128393900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128393939) 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, 558120 + ... + 558349.

It is an arithmetic number, because the mean of its divisors is an integer number (20096460).

Almost surely, 2^128393935 is an apocalyptic number.

128393935 is a deficient number, since it is larger than the sum of its proper divisors (32377745).

128393935 is a wasteful number, since it uses less digits than its factorization.

128393935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116497.

The product of its digits is 174960, while the sum is 43.

The square root of 128393935 is about 11331.1047563775. The cubic root of 128393935 is about 504.4848977698.

The spelling of 128393935 in words is "one hundred twenty-eight million, three hundred ninety-three thousand, nine hundred thirty-five".