398348539 has 4 divisors (see below), whose sum is σ = 421780824. Its totient is φ = 374916256.

The previous prime is 398348521. The next prime is 398348551. The reversal of 398348539 is 935843893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398348539 - 2⁵ = 398348507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398348519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11716117 + ... + 11716150.

It is an arithmetic number, because the mean of its divisors is an integer number (105445206).

Almost surely, 2^398348539 is an apocalyptic number.

398348539 is a deficient number, since it is larger than the sum of its proper divisors (23432285).

398348539 is a wasteful number, since it uses less digits than its factorization.

398348539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23432284.

The product of its digits is 2799360, while the sum is 52.

The square root of 398348539 is about 19958.6707723736. The cubic root of 398348539 is about 735.7908953022.

The spelling of 398348539 in words is "three hundred ninety-eight million, three hundred forty-eight thousand, five hundred thirty-nine".