888139853 has 2 divisors, whose sum is σ = 888139854. Its totient is φ = 888139852.

The previous prime is 888139841. The next prime is 888139913. The reversal of 888139853 is 358931888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844076809 + 44063044 = 29053^2 + 6638^2 .

It is a cyclic number.

It is not a de Polignac number, because 888139853 - 2⁸ = 888139597 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 888139795 and 888139804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (888130853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444069926 + 444069927.

It is an arithmetic number, because the mean of its divisors is an integer number (444069927).

Almost surely, 2^888139853 is an apocalyptic number.

It is an amenable number.

888139853 is a deficient number, since it is larger than the sum of its proper divisors (1).

888139853 is an equidigital number, since it uses as much as digits as its factorization.

888139853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 53.

The square root of 888139853 is about 29801.6753388127. The cubic root of 888139853 is about 961.2295634698.

The spelling of 888139853 in words is "eight hundred eighty-eight million, one hundred thirty-nine thousand, eight hundred fifty-three".