6863963 has 4 divisors (see below), whose sum is σ = 6869640. Its totient is φ = 6858288.

The previous prime is 6863957. The next prime is 6863993. The reversal of 6863963 is 3693686.

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: 3693686 = 2 ⋅1846843.

It is a cyclic number.

It is not a de Polignac number, because 6863963 - 2¹⁴ = 6847579 is a prime.

It is a super-2 number, since 2×6863963² = 94227976130738, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 6863963.

It is not an unprimeable number, because it can be changed into a prime (6863953) 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, 218 + ... + 3711.

It is an arithmetic number, because the mean of its divisors is an integer number (1717410).

Almost surely, 2^6863963 is an apocalyptic number.

6863963 is a deficient number, since it is larger than the sum of its proper divisors (5677).

6863963 is a wasteful number, since it uses less digits than its factorization.

6863963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676.

The product of its digits is 139968, while the sum is 41.

The square root of 6863963 is about 2619.9166017261. The cubic root of 6863963 is about 190.0458153596.

The spelling of 6863963 in words is "six million, eight hundred sixty-three thousand, nine hundred sixty-three".