128471799 has 8 divisors (see below), whose sum is σ = 173359872. Its totient is φ = 84615800.

The previous prime is 128471753. The next prime is 128471867. The reversal of 128471799 is 997174821.

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 128471799 - 2¹³ = 128463607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128471729) 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, 257727 + ... + 258224.

It is an arithmetic number, because the mean of its divisors is an integer number (21669984).

Almost surely, 2^128471799 is an apocalyptic number.

128471799 is a deficient number, since it is larger than the sum of its proper divisors (44888073).

128471799 is an equidigital number, since it uses as much as digits as its factorization.

128471799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516037.

The product of its digits is 254016, while the sum is 48.

The square root of 128471799 is about 11334.5400877142. The cubic root of 128471799 is about 504.5868581262.

The spelling of 128471799 in words is "one hundred twenty-eight million, four hundred seventy-one thousand, seven hundred ninety-nine".