5663749 has 16 divisors (see below), whose sum is σ = 7047040. Its totient is φ = 4432320.

The previous prime is 5663689. The next prime is 5663759. The reversal of 5663749 is 9473665.

It is a cyclic number.

It is not a de Polignac number, because 5663749 - 2¹⁷ = 5532677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5663759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9634 + ... + 10204.

It is an arithmetic number, because the mean of its divisors is an integer number (440440).

Almost surely, 2^5663749 is an apocalyptic number.

It is an amenable number.

5663749 is a deficient number, since it is larger than the sum of its proper divisors (1383291).

5663749 is a wasteful number, since it uses less digits than its factorization.

5663749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

The product of its digits is 136080, while the sum is 40.

The square root of 5663749 is about 2379.8632313644. The cubic root of 5663749 is about 178.2521045816.

The spelling of 5663749 in words is "five million, six hundred sixty-three thousand, seven hundred forty-nine".