5687649 has 24 divisors (see below), whose sum is σ = 9096672. Its totient is φ = 3395520.

The previous prime is 5687609. The next prime is 5687651. The reversal of 5687649 is 9467865.

It is not a de Polignac number, because 5687649 - 2¹¹ = 5685601 is a prime.

It is a super-2 number, since 2×5687649² = 64698702294402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5687609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6834 + ... + 7620.

It is an arithmetic number, because the mean of its divisors is an integer number (379028).

Almost surely, 2^5687649 is an apocalyptic number.

It is an amenable number.

5687649 is a deficient number, since it is larger than the sum of its proper divisors (3409023).

5687649 is a wasteful number, since it uses less digits than its factorization.

5687649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 874 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 5687649 is about 2384.8792422259. The cubic root of 5687649 is about 178.5024833117.

It can be divided in two parts, 5687 and 649, that added together give a palindrome (6336).

The spelling of 5687649 in words is "five million, six hundred eighty-seven thousand, six hundred forty-nine".