4098591 has 24 divisors (see below), whose sum is σ = 6873984. Its totient is φ = 2304720.

The previous prime is 4098587. The next prime is 4098607. The reversal of 4098591 is 1958904.

It is not a de Polignac number, because 4098591 - 2² = 4098587 is a prime.

4098591 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4098511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3736 + ... + 4706.

It is an arithmetic number, because the mean of its divisors is an integer number (286416).

Almost surely, 2^4098591 is an apocalyptic number.

4098591 is a deficient number, since it is larger than the sum of its proper divisors (2775393).

4098591 is a wasteful number, since it uses less digits than its factorization.

4098591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4098591 is about 2024.4977154840. The cubic root of 4098591 is about 160.0337298680.

The spelling of 4098591 in words is "four million, ninety-eight thousand, five hundred ninety-one".