331620793 has 4 divisors (see below), whose sum is σ = 378995200. Its totient is φ = 284246388.

The previous prime is 331620791. The next prime is 331620797. The reversal of 331620793 is 397026133.

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 a cyclic number.

It is not a de Polignac number, because 331620793 - 2¹ = 331620791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331620791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23687193 + ... + 23687206.

It is an arithmetic number, because the mean of its divisors is an integer number (94748800).

Almost surely, 2^331620793 is an apocalyptic number.

It is an amenable number.

331620793 is a deficient number, since it is larger than the sum of its proper divisors (47374407).

331620793 is an equidigital number, since it uses as much as digits as its factorization.

331620793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47374406.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 331620793 is about 18210.4583412939. The cubic root of 331620793 is about 692.1718258927.

The spelling of 331620793 in words is "three hundred thirty-one million, six hundred twenty thousand, seven hundred ninety-three".