5687643 has 16 divisors (see below), whose sum is σ = 8368416. Its totient is φ = 3413760.

The previous prime is 5687609. The next prime is 5687651. The reversal of 5687643 is 3467865.

It is not a de Polignac number, because 5687643 - 2⁸ = 5687387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (5687743) 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 15 ways as a sum of consecutive naturals, for example, 180 + ... + 3377.

It is an arithmetic number, because the mean of its divisors is an integer number (523026).

Almost surely, 2^5687643 is an apocalyptic number.

5687643 is a deficient number, since it is larger than the sum of its proper divisors (2680773).

5687643 is a wasteful number, since it uses less digits than its factorization.

5687643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614.

The product of its digits is 120960, while the sum is 39.

The square root of 5687643 is about 2384.8779843002. The cubic root of 5687643 is about 178.5024205432.

The spelling of 5687643 in words is "five million, six hundred eighty-seven thousand, six hundred forty-three".