5243781 has 8 divisors (see below), whose sum is σ = 7003744. Its totient is φ = 3489840.

The previous prime is 5243761. The next prime is 5243801. The reversal of 5243781 is 1873425.

It is an interprime number because it is at equal distance from previous prime (5243761) and next prime (5243801).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5243781 - 2⁶ = 5243717 is a prime.

It is a super-2 number, since 2×5243781² = 54994478351922, 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 (5243761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1251 + ... + 3471.

It is an arithmetic number, because the mean of its divisors is an integer number (875468).

Almost surely, 2^5243781 is an apocalyptic number.

It is an amenable number.

5243781 is a deficient number, since it is larger than the sum of its proper divisors (1759963).

5243781 is a wasteful number, since it uses less digits than its factorization.

5243781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011.

The product of its digits is 6720, while the sum is 30.

The square root of 5243781 is about 2289.9303482857. The cubic root of 5243781 is about 173.7326784313.

The spelling of 5243781 in words is "five million, two hundred forty-three thousand, seven hundred eighty-one".