6809963 has 4 divisors (see below), whose sum is σ = 6815328. Its totient is φ = 6804600.

The previous prime is 6809927. The next prime is 6809981. The reversal of 6809963 is 3699086.

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.

It is a cyclic number.

It is not a de Polignac number, because 6809963 - 2⁶ = 6809899 is a prime.

It is a super-2 number, since 2×6809963² = 92751192122738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6809963.

It is not an unprimeable number, because it can be changed into a prime (6809903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413 + ... + 3713.

It is an arithmetic number, because the mean of its divisors is an integer number (1703832).

Almost surely, 2^6809963 is an apocalyptic number.

6809963 is a deficient number, since it is larger than the sum of its proper divisors (5365).

6809963 is a wasteful number, since it uses less digits than its factorization.

6809963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5364.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 6809963 is about 2609.5905809149. The cubic root of 6809963 is about 189.5461281041.

The spelling of 6809963 in words is "six million, eight hundred nine thousand, nine hundred sixty-three".