4323681 has 6 divisors (see below), whose sum is σ = 6245330. Its totient is φ = 2882448.

The previous prime is 4323679. The next prime is 4323689. The reversal of 4323681 is 1863234.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3240000 + 1083681 = 1800^2 + 1041^2 .

It is not a de Polignac number, because 4323681 - 2¹ = 4323679 is a prime.

It is a super-2 number, since 2×4323681² = 37388434779522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4323689) 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 5 ways as a sum of consecutive naturals, for example, 240196 + ... + 240213.

Almost surely, 2^4323681 is an apocalyptic number.

It is an amenable number.

4323681 is a deficient number, since it is larger than the sum of its proper divisors (1921649).

4323681 is a wasteful number, since it uses less digits than its factorization.

4323681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480415 (or 480412 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 4323681 is about 2079.3462915061. The cubic root of 4323681 is about 162.9113020635.

The spelling of 4323681 in words is "four million, three hundred twenty-three thousand, six hundred eighty-one".