4081663 has 8 divisors (see below), whose sum is σ = 4268880. Its totient is φ = 3897600.

The previous prime is 4081661. The next prime is 4081669. The reversal of 4081663 is 3661804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4081663 - 2¹ = 4081661 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088 + ... + 3538.

It is an arithmetic number, because the mean of its divisors is an integer number (533610).

Almost surely, 2^4081663 is an apocalyptic number.

4081663 is a deficient number, since it is larger than the sum of its proper divisors (187217).

4081663 is a wasteful number, since it uses less digits than its factorization.

4081663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4081663 is about 2020.3125995746. The cubic root of 4081663 is about 159.8131020798.

The spelling of 4081663 in words is "four million, eighty-one thousand, six hundred sixty-three".