331323794 has 4 divisors (see below), whose sum is σ = 496985694. Its totient is φ = 165661896.

The previous prime is 331323793. The next prime is 331323833. The reversal of 331323794 is 497323133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 497323133 = 7691 ⋅64663.

It can be written as a sum of positive squares in only one way, i.e., 228402769 + 102921025 = 15113^2 + 10145^2 .

It is not an unprimeable number, because it can be changed into a prime (331323793) 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 as a sum of consecutive naturals, namely, 82830947 + ... + 82830950.

Almost surely, 2^331323794 is an apocalyptic number.

331323794 is a deficient number, since it is larger than the sum of its proper divisors (165661900).

331323794 is a wasteful number, since it uses less digits than its factorization.

331323794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165661899.

The product of its digits is 40824, while the sum is 35.

The square root of 331323794 is about 18202.3018873987. The cubic root of 331323794 is about 691.9651282170.

The spelling of 331323794 in words is "three hundred thirty-one million, three hundred twenty-three thousand, seven hundred ninety-four".