398828854 has 8 divisors (see below), whose sum is σ = 598328280. Its totient is φ = 199386096.

The previous prime is 398828831. The next prime is 398828873. The reversal of 398828854 is 458828893.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 398828795 and 398828804.

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, 18442 + ... + 33730.

It is an arithmetic number, because the mean of its divisors is an integer number (74791035).

Almost surely, 2^398828854 is an apocalyptic number.

398828854 is a deficient number, since it is larger than the sum of its proper divisors (199499426).

398828854 is a wasteful number, since it uses less digits than its factorization.

398828854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28334.

The product of its digits is 4423680, while the sum is 55.

The square root of 398828854 is about 19970.6998875853. The cubic root of 398828854 is about 736.0865069928.

The spelling of 398828854 in words is "three hundred ninety-eight million, eight hundred twenty-eight thousand, eight hundred fifty-four".