208342321 has 8 divisors (see below), whose sum is σ = 228017088. Its totient is φ = 188790000.

The previous prime is 208342313. The next prime is 208342333. The reversal of 208342321 is 123243802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208342321 - 2³ = 208342313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208342621) 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 7 ways as a sum of consecutive naturals, for example, 27030 + ... + 33871.

It is an arithmetic number, because the mean of its divisors is an integer number (28502136).

Almost surely, 2^208342321 is an apocalyptic number.

It is an amenable number.

208342321 is a deficient number, since it is larger than the sum of its proper divisors (19674767).

208342321 is a wasteful number, since it uses less digits than its factorization.

208342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61223.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 208342321 is about 14434.0680682890. The cubic root of 208342321 is about 592.8240754715.

Multiplying 208342321 by its sum of digits (25), we get a palindrome (5208558025).

The spelling of 208342321 in words is "two hundred eight million, three hundred forty-two thousand, three hundred twenty-one".