898128478 has 8 divisors (see below), whose sum is σ = 1450822968. Its totient is φ = 414520824.

The previous prime is 898128467. The next prime is 898128509. The reversal of 898128478 is 874821898.

898128478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17271676 + ... + 17271727.

It is an arithmetic number, because the mean of its divisors is an integer number (181352871).

Almost surely, 2^898128478 is an apocalyptic number.

898128478 is a deficient number, since it is larger than the sum of its proper divisors (552694490).

898128478 is a wasteful number, since it uses less digits than its factorization.

898128478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34543418.

The product of its digits is 2064384, while the sum is 55.

The square root of 898128478 is about 29968.7917340690. The cubic root of 898128478 is about 964.8196851385.

The spelling of 898128478 in words is "eight hundred ninety-eight million, one hundred twenty-eight thousand, four hundred seventy-eight".