888844421 has 2 divisors, whose sum is σ = 888844422. Its totient is φ = 888844420.

The previous prime is 888844409. The next prime is 888844433. The reversal of 888844421 is 124448888.

888844421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (888844409) and next prime (888844433).

It can be written as a sum of positive squares in only one way, i.e., 882743521 + 6100900 = 29711^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 888844421 - 2²⁶ = 821735557 is a prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (888844471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444422210 + 444422211.

It is an arithmetic number, because the mean of its divisors is an integer number (444422211).

Almost surely, 2^888844421 is an apocalyptic number.

It is an amenable number.

888844421 is a deficient number, since it is larger than the sum of its proper divisors (1).

888844421 is an equidigital number, since it uses as much as digits as its factorization.

888844421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524288, while the sum is 47.

The square root of 888844421 is about 29813.4939415024. The cubic root of 888844421 is about 961.4836798225.

The spelling of 888844421 in words is "eight hundred eighty-eight million, eight hundred forty-four thousand, four hundred twenty-one".