321342917 has 4 divisors (see below), whose sum is σ = 367249056. Its totient is φ = 275436780.

The previous prime is 321342911. The next prime is 321342929. The reversal of 321342917 is 719243123.

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 321342917 - 2²⁰ = 320294341 is a prime.

It is a super-2 number, since 2×321342917² = 206522540612137778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321342911) 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, 22953059 + ... + 22953072.

It is an arithmetic number, because the mean of its divisors is an integer number (91812264).

Almost surely, 2^321342917 is an apocalyptic number.

It is an amenable number.

321342917 is a deficient number, since it is larger than the sum of its proper divisors (45906139).

321342917 is an equidigital number, since it uses as much as digits as its factorization.

321342917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45906138.

The product of its digits is 9072, while the sum is 32.

The square root of 321342917 is about 17926.0401929707. The cubic root of 321342917 is about 684.9458582246.

The spelling of 321342917 in words is "three hundred twenty-one million, three hundred forty-two thousand, nine hundred seventeen".