4082591 has 4 divisors (see below), whose sum is σ = 4223400. Its totient is φ = 3941784.

The previous prime is 4082579. The next prime is 4082599. The reversal of 4082591 is 1952804.

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 4082591 - 2⁶ = 4082527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 140779 = 4082591 / (4 + 0 + 8 + 2 + 5 + 9 + 1).

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 (4082599) 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, 70361 + ... + 70418.

It is an arithmetic number, because the mean of its divisors is an integer number (1055850).

Almost surely, 2^4082591 is an apocalyptic number.

4082591 is a deficient number, since it is larger than the sum of its proper divisors (140809).

4082591 is a wasteful number, since it uses less digits than its factorization.

4082591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140808.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 4082591 is about 2020.5422539507. The cubic root of 4082591 is about 159.8252127743.

The spelling of 4082591 in words is "four million, eighty-two thousand, five hundred ninety-one".