128348379 has 6 divisors (see below), whose sum is σ = 185392116. Its totient is φ = 85565580.

The previous prime is 128348347. The next prime is 128348387. The reversal of 128348379 is 973843821.

It is not a de Polignac number, because 128348379 - 2⁵ = 128348347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128348179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7130457 + ... + 7130474.

It is an arithmetic number, because the mean of its divisors is an integer number (30898686).

Almost surely, 2^128348379 is an apocalyptic number.

128348379 is a deficient number, since it is larger than the sum of its proper divisors (57043737).

128348379 is a wasteful number, since it uses less digits than its factorization.

128348379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14260937 (or 14260934 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 128348379 is about 11329.0943592151. The cubic root of 128348379 is about 504.4252245652.

The spelling of 128348379 in words is "one hundred twenty-eight million, three hundred forty-eight thousand, three hundred seventy-nine".