326728884 has 12 divisors (see below), whose sum is σ = 762367424. Its totient is φ = 108909624.

The previous prime is 326728873. The next prime is 326728889. The reversal of 326728884 is 488827623.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×326728884³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326728889) 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 in 3 ways as a sum of consecutive naturals, for example, 13613692 + ... + 13613715.

Almost surely, 2^326728884 is an apocalyptic number.

It is an amenable number.

326728884 is an abundant number, since it is smaller than the sum of its proper divisors (435638540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

326728884 is a wasteful number, since it uses less digits than its factorization.

326728884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27227414 (or 27227412 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 326728884 is about 18075.6433910387. The cubic root of 326728884 is about 688.7514240262.

The spelling of 326728884 in words is "three hundred twenty-six million, seven hundred twenty-eight thousand, eight hundred eighty-four".