320300989 has 4 divisors (see below), whose sum is σ = 322090560. Its totient is φ = 318511420.

The previous prime is 320300987. The next prime is 320300999. The reversal of 320300989 is 989003023.

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 320300989 - 2¹ = 320300987 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 (320300983) 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, 894517 + ... + 894874.

It is an arithmetic number, because the mean of its divisors is an integer number (80522640).

Almost surely, 2^320300989 is an apocalyptic number.

It is an amenable number.

320300989 is a deficient number, since it is larger than the sum of its proper divisors (1789571).

320300989 is a wasteful number, since it uses less digits than its factorization.

320300989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789570.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 320300989 is about 17896.9547409608. The cubic root of 320300989 is about 684.2047631146.

The spelling of 320300989 in words is "three hundred twenty million, three hundred thousand, nine hundred eighty-nine".