398898835 has 8 divisors (see below), whose sum is σ = 479055456. Its totient is φ = 318867840.

The previous prime is 398898833. The next prime is 398898839. The reversal of 398898835 is 538898893.

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

It is not a de Polignac number, because 398898835 - 2¹ = 398898833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398898833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24271 + ... + 37240.

It is an arithmetic number, because the mean of its divisors is an integer number (59881932).

Almost surely, 2^398898835 is an apocalyptic number.

398898835 is a deficient number, since it is larger than the sum of its proper divisors (80156621).

398898835 is a wasteful number, since it uses less digits than its factorization.

398898835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62813.

The product of its digits is 14929920, while the sum is 61.

The square root of 398898835 is about 19972.4519025582. The cubic root of 398898835 is about 736.1295572525.

The spelling of 398898835 in words is "three hundred ninety-eight million, eight hundred ninety-eight thousand, eight hundred thirty-five".