14863813 has 4 divisors (see below), whose sum is σ = 14911020. Its totient is φ = 14816608.

The previous prime is 14863789. The next prime is 14863817. The reversal of 14863813 is 31836841.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3560769 + 11303044 = 1887^2 + 3362^2 .

It is a cyclic number.

It is not a de Polignac number, because 14863813 - 2⁵ = 14863781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14863817) 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, 23128 + ... + 23761.

It is an arithmetic number, because the mean of its divisors is an integer number (3727755).

Almost surely, 2^14863813 is an apocalyptic number.

It is an amenable number.

14863813 is a deficient number, since it is larger than the sum of its proper divisors (47207).

14863813 is an equidigital number, since it uses as much as digits as its factorization.

14863813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47206.

The product of its digits is 13824, while the sum is 34.

The square root of 14863813 is about 3855.3615913426. The cubic root of 14863813 is about 245.8725682343.

The spelling of 14863813 in words is "fourteen million, eight hundred sixty-three thousand, eight hundred thirteen".