128304807 has 8 divisors (see below), whose sum is σ = 171821040. Its totient is φ = 85162560.

The previous prime is 128304793. The next prime is 128304811. The reversal of 128304807 is 708403821.

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

It is not a de Polignac number, because 128304807 - 2⁴ = 128304791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128304887) 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, 92694 + ... + 94067.

It is an arithmetic number, because the mean of its divisors is an integer number (21477630).

Almost surely, 2^128304807 is an apocalyptic number.

128304807 is a deficient number, since it is larger than the sum of its proper divisors (43516233).

128304807 is a wasteful number, since it uses less digits than its factorization.

128304807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186993.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 128304807 is about 11327.1711826034. The cubic root of 128304807 is about 504.3681369633.

The spelling of 128304807 in words is "one hundred twenty-eight million, three hundred four thousand, eight hundred seven".