406099 has 4 divisors (see below), whose sum is σ = 411736. Its totient is φ = 400464.

The previous prime is 406093. The next prime is 406117. The reversal of 406099 is 990604.

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 406099 - 2⁵ = 406067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406093) 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, 2709 + ... + 2854.

It is an arithmetic number, because the mean of its divisors is an integer number (102934).

2⁴⁰⁶⁰⁹⁹ is an apocalyptic number.

406099 is a deficient number, since it is larger than the sum of its proper divisors (5637).

406099 is an equidigital number, since it uses as much as digits as its factorization.

406099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5636.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 406099 is about 637.2589740443. The cubic root of 406099 is about 74.0532244314.

The spelling of 406099 in words is "four hundred six thousand, ninety-nine".