5249749 has 4 divisors (see below), whose sum is σ = 5254336. Its totient is φ = 5245164.

The previous prime is 5249731. The next prime is 5249771. The reversal of 5249749 is 9479425.

5249749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5249749 - 2¹¹ = 5247701 is a prime.

It is a Duffinian number.

5249749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5249729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012 + ... + 3394.

It is an arithmetic number, because the mean of its divisors is an integer number (1313584).

Almost surely, 2^5249749 is an apocalyptic number.

It is an amenable number.

5249749 is a deficient number, since it is larger than the sum of its proper divisors (4587).

5249749 is a wasteful number, since it uses less digits than its factorization.

5249749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4586.

The product of its digits is 90720, while the sum is 40.

The square root of 5249749 is about 2291.2330741328. The cubic root of 5249749 is about 173.7985624139.

The spelling of 5249749 in words is "five million, two hundred forty-nine thousand, seven hundred forty-nine".