5605999 has 8 divisors (see below), whose sum is σ = 6448928. Its totient is φ = 4773600.

The previous prime is 5605991. The next prime is 5606011. The reversal of 5605999 is 9995065.

It is a happy number.

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 5605999 - 2³ = 5605991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605991) 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, 1452 + ... + 3649.

It is an arithmetic number, because the mean of its divisors is an integer number (806116).

Almost surely, 2^5605999 is an apocalyptic number.

5605999 is a deficient number, since it is larger than the sum of its proper divisors (842929).

5605999 is a wasteful number, since it uses less digits than its factorization.

5605999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265.

The product of its (nonzero) digits is 109350, while the sum is 43.

The square root of 5605999 is about 2367.6990940574. The cubic root of 5605999 is about 177.6441888630.

The spelling of 5605999 in words is "five million, six hundred five thousand, nine hundred ninety-nine".