4063591 has 4 divisors (see below), whose sum is σ = 4644112. Its totient is φ = 3483072.

The previous prime is 4063589. The next prime is 4063601. The reversal of 4063591 is 1953604.

4063591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4063591 - 2¹ = 4063589 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 (4063091) 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 3 ways as a sum of consecutive naturals, for example, 290250 + ... + 290263.

It is an arithmetic number, because the mean of its divisors is an integer number (1161028).

Almost surely, 2^4063591 is an apocalyptic number.

4063591 is a deficient number, since it is larger than the sum of its proper divisors (580521).

4063591 is an equidigital number, since it uses as much as digits as its factorization.

4063591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580520.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 4063591 is about 2015.8350626973. The cubic root of 4063591 is about 159.5768899104.

It can be divided in two parts, 40 and 63591, that multiplied together give a triangular number (2543640 = T₂₂₅₅).

The spelling of 4063591 in words is "four million, sixty-three thousand, five hundred ninety-one".