2323681 has 4 divisors (see below), whose sum is σ = 2446000. Its totient is φ = 2201364.

The previous prime is 2323669. The next prime is 2323691. The reversal of 2323681 is 1863232.

2323681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2323681 - 2¹⁹ = 1799393 is a prime.

It is a super-2 number, since 2×2323681² = 10798986779522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

2323681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2323631) 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, 61131 + ... + 61168.

It is an arithmetic number, because the mean of its divisors is an integer number (611500).

2^2323681 is an apocalyptic number.

It is an amenable number.

2323681 is a deficient number, since it is larger than the sum of its proper divisors (122319).

2323681 is a wasteful number, since it uses less digits than its factorization.

2323681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122318.

The product of its digits is 1728, while the sum is 25.

The square root of 2323681 is about 1524.3624896986. The cubic root of 2323681 is about 132.4520961279.

The spelling of 2323681 in words is "two million, three hundred twenty-three thousand, six hundred eighty-one".