330221897 has 4 divisors (see below), whose sum is σ = 337901520. Its totient is φ = 322542276.

The previous prime is 330221887. The next prime is 330221933. The reversal of 330221897 is 798122033.

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 330221897 - 2¹⁶ = 330156361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330221867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3839747 + ... + 3839832.

It is an arithmetic number, because the mean of its divisors is an integer number (84475380).

Almost surely, 2^330221897 is an apocalyptic number.

It is an amenable number.

330221897 is a deficient number, since it is larger than the sum of its proper divisors (7679623).

330221897 is an equidigital number, since it uses as much as digits as its factorization.

330221897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7679622.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 330221897 is about 18172.0086121485. The cubic root of 330221897 is about 691.1971774069.

The spelling of 330221897 in words is "three hundred thirty million, two hundred twenty-one thousand, eight hundred ninety-seven".