4098509 has 8 divisors (see below), whose sum is σ = 4356000. Its totient is φ = 3845232.

The previous prime is 4098503. The next prime is 4098511. The reversal of 4098509 is 9058904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4098509 - 2¹² = 4094413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4098503) 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 7 ways as a sum of consecutive naturals, for example, 1082 + ... + 3060.

It is an arithmetic number, because the mean of its divisors is an integer number (544500).

Almost surely, 2^4098509 is an apocalyptic number.

It is an amenable number.

4098509 is a deficient number, since it is larger than the sum of its proper divisors (257491).

4098509 is a wasteful number, since it uses less digits than its factorization.

4098509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 4098509 is about 2024.4774634458. The cubic root of 4098509 is about 160.0326626026.

The spelling of 4098509 in words is "four million, ninety-eight thousand, five hundred nine".