11637893 has 2 divisors, whose sum is σ = 11637894. Its totient is φ = 11637892.

The previous prime is 11637887. The next prime is 11637917. The reversal of 11637893 is 39873611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8655364 + 2982529 = 2942^2 + 1727^2 .

It is an emirp because it is prime and its reverse (39873611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11637893 - 2¹⁰ = 11636869 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11637853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5818946 + 5818947.

It is an arithmetic number, because the mean of its divisors is an integer number (5818947).

Almost surely, 2^11637893 is an apocalyptic number.

It is an amenable number.

11637893 is a deficient number, since it is larger than the sum of its proper divisors (1).

11637893 is an equidigital number, since it uses as much as digits as its factorization.

11637893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 11637893 is about 3411.4356215529. The cubic root of 11637893 is about 226.6164611508.

The spelling of 11637893 in words is "eleven million, six hundred thirty-seven thousand, eight hundred ninety-three".