325889989 has 2 divisors, whose sum is σ = 325889990. Its totient is φ = 325889988.

The previous prime is 325889959. The next prime is 325890041. The reversal of 325889989 is 989988523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309161889 + 16728100 = 17583^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 325889989 - 2¹³ = 325881797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325889909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162944994 + 162944995.

It is an arithmetic number, because the mean of its divisors is an integer number (162944995).

Almost surely, 2^325889989 is an apocalyptic number.

It is an amenable number.

325889989 is a deficient number, since it is larger than the sum of its proper divisors (1).

325889989 is an equidigital number, since it uses as much as digits as its factorization.

325889989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 61.

The square root of 325889989 is about 18052.4233553282. The cubic root of 325889989 is about 688.1614493165.

The spelling of 325889989 in words is "three hundred twenty-five million, eight hundred eighty-nine thousand, nine hundred eighty-nine".