326530643 has 8 divisors (see below), whose sum is σ = 328458240. Its totient is φ = 324608200.

The previous prime is 326530619. The next prime is 326530663. The reversal of 326530643 is 346035623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326530643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326530663) 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 7 ways as a sum of consecutive naturals, for example, 274496 + ... + 275682.

It is an arithmetic number, because the mean of its divisors is an integer number (41057280).

Almost surely, 2^326530643 is an apocalyptic number.

326530643 is a deficient number, since it is larger than the sum of its proper divisors (1927597).

326530643 is a wasteful number, since it uses less digits than its factorization.

326530643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577.

The product of its (nonzero) digits is 38880, while the sum is 32.

The square root of 326530643 is about 18070.1589090965. The cubic root of 326530643 is about 688.6120970982.

The spelling of 326530643 in words is "three hundred twenty-six million, five hundred thirty thousand, six hundred forty-three".