828088883221 has 2 divisors, whose sum is σ = 828088883222. Its totient is φ = 828088883220.

The previous prime is 828088883207. The next prime is 828088883231. The reversal of 828088883221 is 122388880828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472121526321 + 355967356900 = 687111^2 + 596630^2 .

It is a cyclic number.

It is not a de Polignac number, because 828088883221 - 2¹⁷ = 828088752149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828088883231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414044441610 + 414044441611.

It is an arithmetic number, because the mean of its divisors is an integer number (414044441611).

Almost surely, 2^828088883221 is an apocalyptic number.

It is an amenable number.

828088883221 is a deficient number, since it is larger than the sum of its proper divisors (1).

828088883221 is an equidigital number, since it uses as much as digits as its factorization.

828088883221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6291456, while the sum is 58.

The spelling of 828088883221 in words is "eight hundred twenty-eight billion, eighty-eight million, eight hundred eighty-three thousand, two hundred twenty-one".