322029989 has 2 divisors, whose sum is σ = 322029990. Its totient is φ = 322029988.

The previous prime is 322029979. The next prime is 322030001. The reversal of 322029989 is 989920223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269944900 + 52085089 = 16430^2 + 7217^2 .

It is a cyclic number.

It is not a de Polignac number, because 322029989 - 2⁴ = 322029973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322029979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161014994 + 161014995.

It is an arithmetic number, because the mean of its divisors is an integer number (161014995).

Almost surely, 2^322029989 is an apocalyptic number.

It is an amenable number.

322029989 is a deficient number, since it is larger than the sum of its proper divisors (1).

322029989 is an equidigital number, since it uses as much as digits as its factorization.

322029989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 322029989 is about 17945.1940362873. The cubic root of 322029989 is about 685.4336778172.

The spelling of 322029989 in words is "three hundred twenty-two million, twenty-nine thousand, nine hundred eighty-nine".