5866645 has 8 divisors (see below), whose sum is σ = 7136856. Its totient is φ = 4628736.

The previous prime is 5866631. The next prime is 5866661. The reversal of 5866645 is 5466685.

It can be written as a sum of positive squares in 4 ways, for example, as 192721 + 5673924 = 439^2 + 2382^2 .

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 5866645 - 2¹³ = 5858453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5866598 and 5866607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7672 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (892107).

Almost surely, 2^5866645 is an apocalyptic number.

It is an amenable number.

5866645 is a deficient number, since it is larger than the sum of its proper divisors (1270211).

5866645 is a wasteful number, since it uses less digits than its factorization.

5866645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16151.

The product of its digits is 172800, while the sum is 40.

The square root of 5866645 is about 2422.1158106086. The cubic root of 5866645 is about 180.3557265703.

Adding to 5866645 its sum of digits (40), we get a palindrome (5866685).

The spelling of 5866645 in words is "five million, eight hundred sixty-six thousand, six hundred forty-five".