18844853 has 2 divisors, whose sum is σ = 18844854. Its totient is φ = 18844852.

The previous prime is 18844841. The next prime is 18844873. The reversal of 18844853 is 35844881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15665764 + 3179089 = 3958^2 + 1783^2 .

It is a cyclic number.

It is not a de Polignac number, because 18844853 - 2¹⁰ = 18843829 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18844853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18844873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9422426 + 9422427.

It is an arithmetic number, because the mean of its divisors is an integer number (9422427).

Almost surely, 2^18844853 is an apocalyptic number.

It is an amenable number.

18844853 is a deficient number, since it is larger than the sum of its proper divisors (1).

18844853 is an equidigital number, since it uses as much as digits as its factorization.

18844853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122880, while the sum is 41.

The square root of 18844853 is about 4341.0658829370. The cubic root of 18844853 is about 266.1118727798. Note that the first 3 decimals are identical.

The spelling of 18844853 in words is "eighteen million, eight hundred forty-four thousand, eight hundred fifty-three".