325167989 has 4 divisors (see below), whose sum is σ = 325357356. Its totient is φ = 324978624.

The previous prime is 325167943. The next prime is 325168049. The reversal of 325167989 is 989761523.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264062500 + 61105489 = 16250^2 + 7817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325167989 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 (325167289) 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, 92084 + ... + 95549.

It is an arithmetic number, because the mean of its divisors is an integer number (81339339).

Almost surely, 2^325167989 is an apocalyptic number.

It is an amenable number.

325167989 is a deficient number, since it is larger than the sum of its proper divisors (189367).

325167989 is a wasteful number, since it uses less digits than its factorization.

325167989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189366.

The product of its digits is 816480, while the sum is 50.

The square root of 325167989 is about 18032.4149519691. The cubic root of 325167989 is about 687.6528728476.

The spelling of 325167989 in words is "three hundred twenty-five million, one hundred sixty-seven thousand, nine hundred eighty-nine".