14887813 has 2 divisors, whose sum is σ = 14887814. Its totient is φ = 14887812.

The previous prime is 14887783. The next prime is 14887841. The reversal of 14887813 is 31878841.

14887813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14615329 + 272484 = 3823^2 + 522^2 .

It is a cyclic number.

It is not a de Polignac number, because 14887813 - 2¹³ = 14879621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14887853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7443906 + 7443907.

It is an arithmetic number, because the mean of its divisors is an integer number (7443907).

Almost surely, 2^14887813 is an apocalyptic number.

It is an amenable number.

14887813 is a deficient number, since it is larger than the sum of its proper divisors (1).

14887813 is an equidigital number, since it uses as much as digits as its factorization.

14887813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 40.

The square root of 14887813 is about 3858.4728844453. The cubic root of 14887813 is about 246.0048305835.

The spelling of 14887813 in words is "fourteen million, eight hundred eighty-seven thousand, eight hundred thirteen".