4407681 has 12 divisors (see below), whose sum is σ = 6090032. Its totient is φ = 2835504.

The previous prime is 4407671. The next prime is 4407691. The reversal of 4407681 is 1867044.

It is an interprime number because it is at equal distance from previous prime (4407671) and next prime (4407691).

It is not a de Polignac number, because 4407681 - 2¹¹ = 4405633 is a prime.

It is a super-2 number, since 2×4407681² = 38855303595522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4407671) 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 11 ways as a sum of consecutive naturals, for example, 1650 + ... + 3396.

Almost surely, 2^4407681 is an apocalyptic number.

It is an amenable number.

4407681 is a deficient number, since it is larger than the sum of its proper divisors (1682351).

4407681 is a wasteful number, since it uses less digits than its factorization.

4407681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808 (or 1779 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 4407681 is about 2099.4477845376. The cubic root of 4407681 is about 163.9595503057.

The spelling of 4407681 in words is "four million, four hundred seven thousand, six hundred eighty-one".