326972385 has 24 divisors (see below), whose sum is σ = 568002240. Its totient is φ = 174000672.

The previous prime is 326972357. The next prime is 326972413. The reversal of 326972385 is 583279623.

326972385 is a `hidden beast` number, since 3 + 269 + 7 + 2 + 385 = 666.

It is an interprime number because it is at equal distance from previous prime (326972357) and next prime (326972413).

It is not a de Polignac number, because 326972385 - 2¹¹ = 326970337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 326972385.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13236 + ... + 28794.

It is an arithmetic number, because the mean of its divisors is an integer number (23666760).

Almost surely, 2^326972385 is an apocalyptic number.

It is an amenable number.

326972385 is a deficient number, since it is larger than the sum of its proper divisors (241029855).

326972385 is a wasteful number, since it uses less digits than its factorization.

326972385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16037 (or 16034 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 326972385 is about 18082.3777474092. The cubic root of 326972385 is about 688.9224832973.

The spelling of 326972385 in words is "three hundred twenty-six million, nine hundred seventy-two thousand, three hundred eighty-five".