6009805 has 4 divisors (see below), whose sum is σ = 7211772. Its totient is φ = 4807840.

The previous prime is 6009797. The next prime is 6009811. The reversal of 6009805 is 5089006.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1054729 + 4955076 = 1027^2 + 2226^2 .

It is not a de Polignac number, because 6009805 - 2³ = 6009797 is a prime.

It is a super-2 number, since 2×6009805² = 72235512276050, which contains 22 as substring.

It is a Duffinian number.

6009805 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600976 + ... + 600985.

It is an arithmetic number, because the mean of its divisors is an integer number (1802943).

Almost surely, 2^6009805 is an apocalyptic number.

It is an amenable number.

6009805 is a deficient number, since it is larger than the sum of its proper divisors (1201967).

6009805 is a wasteful number, since it uses less digits than its factorization.

6009805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201966.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 6009805 is about 2451.4903630241. The cubic root of 6009805 is about 181.8109880108.

The spelling of 6009805 in words is "six million, nine thousand, eight hundred five".