323420909 has 4 divisors (see below), whose sum is σ = 369623904. Its totient is φ = 277217916.

The previous prime is 323420897. The next prime is 323420941. The reversal of 323420909 is 909024323.

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 a de Polignac number, because none of the positive numbers 2^k-323420909 is a prime.

It is a super-3 number, since 3×323420909³ (a number of 27 digits) contains 333 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 (323420809) 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, 23101487 + ... + 23101500.

It is an arithmetic number, because the mean of its divisors is an integer number (92405976).

Almost surely, 2^323420909 is an apocalyptic number.

It is an amenable number.

323420909 is a deficient number, since it is larger than the sum of its proper divisors (46202995).

323420909 is an equidigital number, since it uses as much as digits as its factorization.

323420909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46202994.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 323420909 is about 17983.9069448215. The cubic root of 323420909 is about 686.4191078518.

The spelling of 323420909 in words is "three hundred twenty-three million, four hundred twenty thousand, nine hundred nine".