128547898 has 8 divisors (see below), whose sum is σ = 197306208. Its totient is φ = 62779164.

The previous prime is 128547883. The next prime is 128547899. The reversal of 128547898 is 898745821.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (128547899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747286 + ... + 747457.

It is an arithmetic number, because the mean of its divisors is an integer number (24663276).

Almost surely, 2^128547898 is an apocalyptic number.

128547898 is a deficient number, since it is larger than the sum of its proper divisors (68758310).

128547898 is a wasteful number, since it uses less digits than its factorization.

128547898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494788.

The product of its digits is 1290240, while the sum is 52.

The square root of 128547898 is about 11337.8965421281. The cubic root of 128547898 is about 504.6864674735.

The spelling of 128547898 in words is "one hundred twenty-eight million, five hundred forty-seven thousand, eight hundred ninety-eight".