393898341 has 4 divisors (see below), whose sum is σ = 525197792. Its totient is φ = 262598892.

The previous prime is 393898333. The next prime is 393898343. The reversal of 393898341 is 143898393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 393898341 - 2³ = 393898333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393898343) 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 3 ways as a sum of consecutive naturals, for example, 65649721 + ... + 65649726.

It is an arithmetic number, because the mean of its divisors is an integer number (131299448).

Almost surely, 2^393898341 is an apocalyptic number.

It is an amenable number.

393898341 is a deficient number, since it is larger than the sum of its proper divisors (131299451).

393898341 is a wasteful number, since it uses less digits than its factorization.

393898341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131299450.

The product of its digits is 559872, while the sum is 48.

The square root of 393898341 is about 19846.8723228624. The cubic root of 393898341 is about 733.0406363358.

The spelling of 393898341 in words is "three hundred ninety-three million, eight hundred ninety-eight thousand, three hundred forty-one".