326713989 has 16 divisors (see below), whose sum is σ = 498122240. Its totient is φ = 186591600.

The previous prime is 326713963. The next prime is 326713997. The reversal of 326713989 is 989317623.

It is not a de Polignac number, because 326713989 - 2⁹ = 326713477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326713999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52914 + ... + 58764.

It is an arithmetic number, because the mean of its divisors is an integer number (31132640).

Almost surely, 2^326713989 is an apocalyptic number.

It is an amenable number.

326713989 is a deficient number, since it is larger than the sum of its proper divisors (171408251).

326713989 is a wasteful number, since it uses less digits than its factorization.

326713989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8520.

The product of its digits is 489888, while the sum is 48.

The square root of 326713989 is about 18075.2313678138. The cubic root of 326713989 is about 688.7409575417.

The spelling of 326713989 in words is "three hundred twenty-six million, seven hundred thirteen thousand, nine hundred eighty-nine".