5849865 has 48 divisors (see below), whose sum is σ = 11856000. Its totient is φ = 2667168.

The previous prime is 5849863. The next prime is 5849867. The reversal of 5849865 is 5689485.

5849865 is a `hidden beast` number, since 584 + 9 + 8 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (5849863) and next prime (5849867).

It is not a de Polignac number, because 5849865 - 2¹ = 5849863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an Ulam number.

5849865 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5849865.

It is not an unprimeable number, because it can be changed into a prime (5849863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15246 + ... + 15624.

It is an arithmetic number, because the mean of its divisors is an integer number (247000).

Almost surely, 2^5849865 is an apocalyptic number.

It is an amenable number.

5849865 is an abundant number, since it is smaller than the sum of its proper divisors (6006135).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5849865 is a wasteful number, since it uses less digits than its factorization.

5849865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 394 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 5849865 is about 2418.6494165133. The cubic root of 5849865 is about 180.1836089424.

Adding to 5849865 its sum of digits (45), we get a triangular number (5849910 = T₃₄₂₀).

The spelling of 5849865 in words is "five million, eight hundred forty-nine thousand, eight hundred sixty-five".