4010591 has 4 divisors (see below), whose sum is σ = 4319112. Its totient is φ = 3702072.

The previous prime is 4010581. The next prime is 4010597. The reversal of 4010591 is 1950104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4010591 - 2⁶ = 4010527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4010597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154241 + ... + 154266.

It is an arithmetic number, because the mean of its divisors is an integer number (1079778).

Almost surely, 2^4010591 is an apocalyptic number.

4010591 is a deficient number, since it is larger than the sum of its proper divisors (308521).

4010591 is a wasteful number, since it uses less digits than its factorization.

4010591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308520.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 4010591 is about 2002.6459996714. The cubic root of 4010591 is about 158.8800830984.

Adding to 4010591 its reverse (1950104), we get a palindrome (5960695).

The spelling of 4010591 in words is "four million, ten thousand, five hundred ninety-one".