4057591 has 4 divisors (see below), whose sum is σ = 4234032. Its totient is φ = 3881152.

The previous prime is 4057589. The next prime is 4057597. The reversal of 4057591 is 1957504.

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 4057591 - 2¹ = 4057589 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4057597) 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 3 ways as a sum of consecutive naturals, for example, 88186 + ... + 88231.

It is an arithmetic number, because the mean of its divisors is an integer number (1058508).

Almost surely, 2^4057591 is an apocalyptic number.

4057591 is a deficient number, since it is larger than the sum of its proper divisors (176441).

4057591 is a wasteful number, since it uses less digits than its factorization.

4057591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176440.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 4057591 is about 2014.3462959481. The cubic root of 4057591 is about 159.4983113850.

The spelling of 4057591 in words is "four million, fifty-seven thousand, five hundred ninety-one".