398798385 has 8 divisors (see below), whose sum is σ = 638077440. Its totient is φ = 212692464.

The previous prime is 398798371. The next prime is 398798423. The reversal of 398798385 is 583897893.

It is a happy number.

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

It is not a de Polignac number, because 398798385 - 2⁹ = 398797873 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13293265 + ... + 13293294.

It is an arithmetic number, because the mean of its divisors is an integer number (79759680).

Almost surely, 2^398798385 is an apocalyptic number.

It is an amenable number.

398798385 is a deficient number, since it is larger than the sum of its proper divisors (239279055).

398798385 is a wasteful number, since it uses less digits than its factorization.

398798385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26586567.

The product of its digits is 13063680, while the sum is 60.

The square root of 398798385 is about 19969.9370304465. The cubic root of 398798385 is about 736.0677617835.

The spelling of 398798385 in words is "three hundred ninety-eight million, seven hundred ninety-eight thousand, three hundred eighty-five".