605851 has 4 divisors (see below), whose sum is σ = 613600. Its totient is φ = 598104.

The previous prime is 605849. The next prime is 605861. The reversal of 605851 is 158506.

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 605851 - 2¹ = 605849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605861) 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, 3756 + ... + 3913.

It is an arithmetic number, because the mean of its divisors is an integer number (153400).

2⁶⁰⁵⁸⁵¹ is an apocalyptic number.

605851 is a deficient number, since it is larger than the sum of its proper divisors (7749).

605851 is an equidigital number, since it uses as much as digits as its factorization.

605851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7748.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 605851 is about 778.3643105898. The cubic root of 605851 is about 84.6165426203.

The spelling of 605851 in words is "six hundred five thousand, eight hundred fifty-one".