4459681 has 4 divisors (see below), whose sum is σ = 4470192. Its totient is φ = 4449172.

The previous prime is 4459669. The next prime is 4459687. The reversal of 4459681 is 1869544.

It is a happy number.

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 4459681 - 2¹⁵ = 4426913 is a prime.

It is a super-2 number, since 2×4459681² = 39777509243522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4459681.

It is not an unprimeable number, because it can be changed into a prime (4459687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4591 + ... + 5476.

It is an arithmetic number, because the mean of its divisors is an integer number (1117548).

Almost surely, 2^4459681 is an apocalyptic number.

It is an amenable number.

4459681 is a deficient number, since it is larger than the sum of its proper divisors (10511).

4459681 is a wasteful number, since it uses less digits than its factorization.

4459681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510.

The product of its digits is 34560, while the sum is 37.

The square root of 4459681 is about 2111.7956814048. The cubic root of 4459681 is about 164.6018068815.

The spelling of 4459681 in words is "four million, four hundred fifty-nine thousand, six hundred eighty-one".