398335533893 has 16 divisors (see below), whose sum is σ = 446043179520. Its totient is φ = 352658502000.

The previous prime is 398335533889. The next prime is 398335533929.

398335533893 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 398335533893 - 2² = 398335533889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398335533823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2798633 + ... + 2937518.

It is an arithmetic number, because the mean of its divisors is an integer number (27877698720).

Almost surely, 2^398335533893 is an apocalyptic number.

It is an amenable number.

398335533893 is a deficient number, since it is larger than the sum of its proper divisors (47707645627).

398335533893 is a wasteful number, since it uses less digits than its factorization.

398335533893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736328.

The product of its digits is 94478400, while the sum is 62.

The spelling of 398335533893 in words is "three hundred ninety-eight billion, three hundred thirty-five million, five hundred thirty-three thousand, eight hundred ninety-three".