324071681 has 4 divisors (see below), whose sum is σ = 327218112. Its totient is φ = 320925252.

The previous prime is 324071639. The next prime is 324071729. The reversal of 324071681 is 186170423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 324071681 - 2⁶ = 324071617 is a prime.

It is a super-2 number, since 2×324071681² = 210044908852331522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324071611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573061 + ... + 1573266.

It is an arithmetic number, because the mean of its divisors is an integer number (81804528).

Almost surely, 2^324071681 is an apocalyptic number.

It is an amenable number.

324071681 is a deficient number, since it is larger than the sum of its proper divisors (3146431).

324071681 is a wasteful number, since it uses less digits than its factorization.

324071681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146430.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 324071681 is about 18001.9910287723. The cubic root of 324071681 is about 686.8791925759.

The spelling of 324071681 in words is "three hundred twenty-four million, seventy-one thousand, six hundred eighty-one".