5649863 has 6 divisors (see below), whose sum is σ = 5808096. Its totient is φ = 5495832.

The previous prime is 5649851. The next prime is 5649871. The reversal of 5649863 is 3689465.

It is not a de Polignac number, because 5649863 - 2⁶ = 5649799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5649863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5649883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695 + ... + 3432.

It is an arithmetic number, because the mean of its divisors is an integer number (968016).

Almost surely, 2^5649863 is an apocalyptic number.

5649863 is a deficient number, since it is larger than the sum of its proper divisors (158233).

5649863 is an equidigital number, since it uses as much as digits as its factorization.

5649863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201 (or 4164 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 5649863 is about 2376.9440464597. The cubic root of 5649863 is about 178.1063098477.

The spelling of 5649863 in words is "five million, six hundred forty-nine thousand, eight hundred sixty-three".