13800637 has 2 divisors, whose sum is σ = 13800638. Its totient is φ = 13800636.

The previous prime is 13800629. The next prime is 13800653. The reversal of 13800637 is 73600831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7778521 + 6022116 = 2789^2 + 2454^2 .

It is a cyclic number.

It is not a de Polignac number, because 13800637 - 2³ = 13800629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13800737) 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 as a sum of consecutive naturals, namely, 6900318 + 6900319.

It is an arithmetic number, because the mean of its divisors is an integer number (6900319).

Almost surely, 2^13800637 is an apocalyptic number.

It is an amenable number.

13800637 is a deficient number, since it is larger than the sum of its proper divisors (1).

13800637 is an equidigital number, since it uses as much as digits as its factorization.

13800637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13800637 is about 3714.9208605299. The cubic root of 13800637 is about 239.8647212166.

The spelling of 13800637 in words is "thirteen million, eight hundred thousand, six hundred thirty-seven".