10243643 has 4 divisors (see below), whose sum is σ = 10250088. Its totient is φ = 10237200.

The previous prime is 10243637. The next prime is 10243657. The reversal of 10243643 is 34634201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34634201 = 7 ⋅4947743.

It is a cyclic number.

It is not a de Polignac number, because 10243643 - 2¹⁶ = 10178107 is a prime.

It is a super-2 number, since 2×10243643² = 209864443822898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10243663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055 + ... + 4647.

It is an arithmetic number, because the mean of its divisors is an integer number (2562522).

Almost surely, 2^10243643 is an apocalyptic number.

10243643 is a deficient number, since it is larger than the sum of its proper divisors (6445).

10243643 is an equidigital number, since it uses as much as digits as its factorization.

10243643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 10243643 is about 3200.5691681324. The cubic root of 10243643 is about 217.1791578978.

Adding to 10243643 its reverse (34634201), we get a palindrome (44877844).

The spelling of 10243643 in words is "ten million, two hundred forty-three thousand, six hundred forty-three".