4083681 has 16 divisors (see below), whose sum is σ = 6272000. Its totient is φ = 2315088.

The previous prime is 4083671. The next prime is 4083691. The reversal of 4083681 is 1863804.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4083671) and next prime (4083691).

It is not a de Polignac number, because 4083681 - 2¹⁹ = 3559393 is a prime.

It is a super-2 number, since 2×4083681² = 33352901019522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4083631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2220 + ... + 3618.

It is an arithmetic number, because the mean of its divisors is an integer number (392000).

Almost surely, 2^4083681 is an apocalyptic number.

It is an amenable number.

4083681 is a deficient number, since it is larger than the sum of its proper divisors (2188319).

4083681 is a wasteful number, since it uses less digits than its factorization.

4083681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 4083681 is about 2020.8119655228. The cubic root of 4083681 is about 159.8394352766.

The spelling of 4083681 in words is "four million, eighty-three thousand, six hundred eighty-one".