4003091 has 8 divisors (see below), whose sum is σ = 4286400. Its totient is φ = 3727080.

The previous prime is 4003079. The next prime is 4003099. The reversal of 4003091 is 1903004.

4003091 = 50³ + 51³ + ... + 68³.

4003091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4003091 - 2¹⁰ = 4002067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4003099) 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 7 ways as a sum of consecutive naturals, for example, 665 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (535800).

Almost surely, 2^4003091 is an apocalyptic number.

4003091 is a deficient number, since it is larger than the sum of its proper divisors (283309).

4003091 is a wasteful number, since it uses less digits than its factorization.

4003091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 4003091 is about 2000.7726007720. The cubic root of 4003091 is about 158.7809834745.

Adding to 4003091 its reverse (1903004), we get a palindrome (5906095).

The spelling of 4003091 in words is "four million, three thousand, ninety-one".