5659749 has 6 divisors (see below), whose sum is σ = 8175206. Its totient is φ = 3773160.

The previous prime is 5659729. The next prime is 5659751. The reversal of 5659749 is 9479565.

It is a happy number.

5659749 is a `hidden beast` number, since 56 + 597 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 42849 = 2370^2 + 207^2 .

It is not a de Polignac number, because 5659749 - 2⁹ = 5659237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5659729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314422 + ... + 314439.

Almost surely, 2^5659749 is an apocalyptic number.

It is an amenable number.

5659749 is a deficient number, since it is larger than the sum of its proper divisors (2515457).

5659749 is a wasteful number, since it uses less digits than its factorization.

5659749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628867 (or 628864 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 5659749 is about 2379.0226985046. The cubic root of 5659749 is about 178.2101314211.

The spelling of 5659749 in words is "five million, six hundred fifty-nine thousand, seven hundred forty-nine".