10643863 has 2 divisors, whose sum is σ = 10643864. Its totient is φ = 10643862.

The previous prime is 10643861. The next prime is 10643903. The reversal of 10643863 is 36834601.

10643863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10643863 - 2¹ = 10643861 is a prime.

It is a super-2 number, since 2×10643863² = 226583639125538, which contains 22 as substring.

Together with 10643861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10643861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5321931 + 5321932.

It is an arithmetic number, because the mean of its divisors is an integer number (5321932).

Almost surely, 2^10643863 is an apocalyptic number.

10643863 is a deficient number, since it is larger than the sum of its proper divisors (1).

10643863 is an equidigital number, since it uses as much as digits as its factorization.

10643863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 10643863 is about 3262.4933716408. The cubic root of 10643863 is about 219.9715045738.

The spelling of 10643863 in words is "ten million, six hundred forty-three thousand, eight hundred sixty-three".