5851645 has 4 divisors (see below), whose sum is σ = 7021980. Its totient is φ = 4681312.

The previous prime is 5851627. The next prime is 5851673. The reversal of 5851645 is 5461585.

It is a happy number.

5851645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 2937796 + 2913849 = 1714^2 + 1707^2 .

It is a cyclic number.

It is not a de Polignac number, because 5851645 - 2⁵ = 5851613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5851645.

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, 585160 + ... + 585169.

It is an arithmetic number, because the mean of its divisors is an integer number (1755495).

Almost surely, 2^5851645 is an apocalyptic number.

It is an amenable number.

5851645 is a deficient number, since it is larger than the sum of its proper divisors (1170335).

5851645 is a wasteful number, since it uses less digits than its factorization.

5851645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170334.

The product of its digits is 24000, while the sum is 34.

The square root of 5851645 is about 2419.0173624842. The cubic root of 5851645 is about 180.2018825435.

The spelling of 5851645 in words is "five million, eight hundred fifty-one thousand, six hundred forty-five".