330397 has 4 divisors (see below), whose sum is σ = 341820. Its totient is φ = 318976.

The previous prime is 330389. The next prime is 330409. The reversal of 330397 is 793033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793033 = 17 ⋅46649.

It can be written as a sum of positive squares in 2 ways, for example, as 210681 + 119716 = 459^2 + 346^2 .

It is a cyclic number.

It is not a de Polignac number, because 330397 - 2³ = 330389 is a prime.

It is a Duffinian number.

330397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330347) 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, 5668 + ... + 5725.

It is an arithmetic number, because the mean of its divisors is an integer number (85455).

2³³⁰³⁹⁷ is an apocalyptic number.

It is an amenable number.

330397 is a deficient number, since it is larger than the sum of its proper divisors (11423).

330397 is a wasteful number, since it uses less digits than its factorization.

330397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11422.

The product of its (nonzero) digits is 1701, while the sum is 25.

The square root of 330397 is about 574.8017049383. The cubic root of 330397 is about 69.1319326901.

It can be divided in two parts, 330 and 397, that added together give a palindrome (727).

The spelling of 330397 in words is "three hundred thirty thousand, three hundred ninety-seven".