5663845 has 32 divisors (see below), whose sum is σ = 7931520. Its totient is φ = 3843840.

The previous prime is 5663821. The next prime is 5663887. The reversal of 5663845 is 5483665.

It is not a de Polignac number, because 5663845 - 2¹¹ = 5661797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84502 + ... + 84568.

It is an arithmetic number, because the mean of its divisors is an integer number (247860).

Almost surely, 2^5663845 is an apocalyptic number.

5663845 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5663845 is a deficient number, since it is larger than the sum of its proper divisors (2267675).

5663845 is a wasteful number, since it uses less digits than its factorization.

5663845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its digits is 86400, while the sum is 37.

The square root of 5663845 is about 2379.8834005052. The cubic root of 5663845 is about 178.2531116946.

The spelling of 5663845 in words is "five million, six hundred sixty-three thousand, eight hundred forty-five".