5648749 has 2 divisors, whose sum is σ = 5648750. Its totient is φ = 5648748.

The previous prime is 5648729. The next prime is 5648761. The reversal of 5648749 is 9478465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5373124 + 275625 = 2318^2 + 525^2 .

It is a cyclic number.

It is not a de Polignac number, because 5648749 - 2⁵ = 5648717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5648729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2824374 + 2824375.

It is an arithmetic number, because the mean of its divisors is an integer number (2824375).

Almost surely, 2^5648749 is an apocalyptic number.

It is an amenable number.

5648749 is a deficient number, since it is larger than the sum of its proper divisors (1).

5648749 is an equidigital number, since it uses as much as digits as its factorization.

5648749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 5648749 is about 2376.7097004052. The cubic root of 5648749 is about 178.0946031644.

The spelling of 5648749 in words is "five million, six hundred forty-eight thousand, seven hundred forty-nine".