323297989 has 4 divisors (see below), whose sum is σ = 369483424. Its totient is φ = 277112556.

The previous prime is 323297963. The next prime is 323297999. The reversal of 323297989 is 989792323.

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, and also an emirpimes, since its reverse is a distinct semiprime: 989792323 = 13 ⋅76137871.

It is not a de Polignac number, because 323297989 - 2¹¹ = 323295941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323297999) 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, 23092707 + ... + 23092720.

It is an arithmetic number, because the mean of its divisors is an integer number (92370856).

Almost surely, 2^323297989 is an apocalyptic number.

It is an amenable number.

323297989 is a deficient number, since it is larger than the sum of its proper divisors (46185435).

323297989 is an equidigital number, since it uses as much as digits as its factorization.

323297989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46185434.

The product of its digits is 1469664, while the sum is 52.

The square root of 323297989 is about 17980.4891201547. The cubic root of 323297989 is about 686.3321362245.

The spelling of 323297989 in words is "three hundred twenty-three million, two hundred ninety-seven thousand, nine hundred eighty-nine".