6224749 has 4 divisors (see below), whose sum is σ = 6294780. Its totient is φ = 6154720.

The previous prime is 6224747. The next prime is 6224753. The reversal of 6224749 is 9474226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9474226 = 2 ⋅4737113.

It can be written as a sum of positive squares in 2 ways, for example, as 902500 + 5322249 = 950^2 + 2307^2 .

It is a cyclic number.

It is not a de Polignac number, because 6224749 - 2¹ = 6224747 is a prime.

It is a super-2 number, since 2×6224749² = 77495000226002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6224747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34882 + ... + 35059.

It is an arithmetic number, because the mean of its divisors is an integer number (1573695).

Almost surely, 2^6224749 is an apocalyptic number.

It is an amenable number.

6224749 is a deficient number, since it is larger than the sum of its proper divisors (70031).

6224749 is an equidigital number, since it uses as much as digits as its factorization.

6224749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70030.

The product of its digits is 24192, while the sum is 34.

The square root of 6224749 is about 2494.9446887657. The cubic root of 6224749 is about 183.9531721571.

The spelling of 6224749 in words is "six million, two hundred twenty-four thousand, seven hundred forty-nine".