331098393 has 8 divisors (see below), whose sum is σ = 441578848. Its totient is φ = 220675104.

The previous prime is 331098379. The next prime is 331098403. The reversal of 331098393 is 393890133.

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 331098393 - 2⁹ = 331097881 is a prime.

It is a super-2 number, since 2×331098393² = 219252291694364898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331098343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1821 + ... + 25797.

It is an arithmetic number, because the mean of its divisors is an integer number (55197356).

Almost surely, 2^331098393 is an apocalyptic number.

It is an amenable number.

331098393 is a deficient number, since it is larger than the sum of its proper divisors (110480455).

331098393 is a wasteful number, since it uses less digits than its factorization.

331098393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28583.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 331098393 is about 18196.1092819317. The cubic root of 331098393 is about 691.8081770039.

The spelling of 331098393 in words is "three hundred thirty-one million, ninety-eight thousand, three hundred ninety-three".