326720943 has 24 divisors (see below), whose sum is σ = 503536176. Its totient is φ = 203424000.

The previous prime is 326720899. The next prime is 326720959. The reversal of 326720943 is 349027623.

It is a happy number.

It is not a de Polignac number, because 326720943 - 2¹⁴ = 326704559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 326720898 and 326720907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326720983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11893 + ... + 28193.

It is an arithmetic number, because the mean of its divisors is an integer number (20980674).

Almost surely, 2^326720943 is an apocalyptic number.

326720943 is a deficient number, since it is larger than the sum of its proper divisors (176815233).

326720943 is a wasteful number, since it uses less digits than its factorization.

326720943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16455 (or 16452 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 326720943 is about 18075.4237294731. The cubic root of 326720943 is about 688.7458440488.

The spelling of 326720943 in words is "three hundred twenty-six million, seven hundred twenty thousand, nine hundred forty-three".