128479895 has 12 divisors (see below), whose sum is σ = 155838744. Its totient is φ = 101687040.

The previous prime is 128479891. The next prime is 128479913. The reversal of 128479895 is 598974821.

It is not a de Polignac number, because 128479895 - 2² = 128479891 is a prime.

It is a super-3 number, since 3×128479895³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128479891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45680 + ... + 48410.

It is an arithmetic number, because the mean of its divisors is an integer number (12986562).

Almost surely, 2^128479895 is an apocalyptic number.

128479895 is a deficient number, since it is larger than the sum of its proper divisors (27358849).

128479895 is an frugal number, since it uses more digits than its factorization.

128479895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930 (or 2833 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 53.

The square root of 128479895 is about 11334.8972205309. The cubic root of 128479895 is about 504.5974572082.

The spelling of 128479895 in words is "one hundred twenty-eight million, four hundred seventy-nine thousand, eight hundred ninety-five".