339820217 has 4 divisors (see below), whose sum is σ = 370712976. Its totient is φ = 308927460.

The previous prime is 339820213. The next prime is 339820219. The reversal of 339820217 is 712028933.

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 339820217 - 2² = 339820213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (339820213) 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, 15446363 + ... + 15446384.

It is an arithmetic number, because the mean of its divisors is an integer number (92678244).

Almost surely, 2^339820217 is an apocalyptic number.

It is an amenable number.

339820217 is a deficient number, since it is larger than the sum of its proper divisors (30892759).

339820217 is a wasteful number, since it uses less digits than its factorization.

339820217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30892758.

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

The square root of 339820217 is about 18434.2132189036. The cubic root of 339820217 is about 697.8301632749.

The spelling of 339820217 in words is "three hundred thirty-nine million, eight hundred twenty thousand, two hundred seventeen".