4098999 has 4 divisors (see below), whose sum is σ = 5465336. Its totient is φ = 2732664.

The previous prime is 4098973. The next prime is 4099001. The reversal of 4098999 is 9998904.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4098999 - 2¹² = 4094903 is a prime.

It is a D-number.

It is a Duffinian number.

4098999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4098949) 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, 683164 + ... + 683169.

It is an arithmetic number, because the mean of its divisors is an integer number (1366334).

Almost surely, 2^4098999 is an apocalyptic number.

4098999 is a deficient number, since it is larger than the sum of its proper divisors (1366337).

4098999 is a wasteful number, since it uses less digits than its factorization.

4098999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366336.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 4098999 is about 2024.5984787113. The cubic root of 4098999 is about 160.0390399527.

The spelling of 4098999 in words is "four million, ninety-eight thousand, nine hundred ninety-nine".