325287989 has 6 divisors (see below), whose sum is σ = 352235106. Its totient is φ = 300265680.

The previous prime is 325287959. The next prime is 325288003. The reversal of 325287989 is 989782523.

It can be written as a sum of positive squares in 3 ways, for example, as 35164900 + 290123089 = 5930^2 + 17033^2 .

It is not a de Polignac number, because 325287989 - 2¹⁶ = 325222453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 325287989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325287959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 962222 + ... + 962559.

It is an arithmetic number, because the mean of its divisors is an integer number (58705851).

Almost surely, 2^325287989 is an apocalyptic number.

It is an amenable number.

325287989 is a deficient number, since it is larger than the sum of its proper divisors (26947117).

325287989 is a wasteful number, since it uses less digits than its factorization.

325287989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924807 (or 1924794 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 325287989 is about 18035.7419864002. The cubic root of 325287989 is about 687.7374529198.

The spelling of 325287989 in words is "three hundred twenty-five million, two hundred eighty-seven thousand, nine hundred eighty-nine".