4243963 has 4 divisors (see below), whose sum is σ = 4250008. Its totient is φ = 4237920.

The previous prime is 4243961. The next prime is 4243969. The reversal of 4243963 is 3693424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4243963 - 2¹ = 4243961 is a prime.

It is a super-2 number, since 2×4243963² = 36022443890738, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁵ + 2⁹ + 4¹¹ + 3⁶ + 9 + 6⁶ + 3⁶ .

It is a Duffinian number.

4243963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4243961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806 + ... + 3427.

It is an arithmetic number, because the mean of its divisors is an integer number (1062502).

Almost surely, 2^4243963 is an apocalyptic number.

4243963 is a deficient number, since it is larger than the sum of its proper divisors (6045).

4243963 is an equidigital number, since it uses as much as digits as its factorization.

4243963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6044.

The product of its digits is 15552, while the sum is 31.

The square root of 4243963 is about 2060.0881049120. The cubic root of 4243963 is about 161.9038574989.

The spelling of 4243963 in words is "four million, two hundred forty-three thousand, nine hundred sixty-three".