828238847 has 2 divisors, whose sum is σ = 828238848. Its totient is φ = 828238846.

The previous prime is 828238813. The next prime is 828238877. The reversal of 828238847 is 748832828.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 828238847 - 2¹⁴ = 828222463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 828238795 and 828238804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828238877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414119423 + 414119424.

It is an arithmetic number, because the mean of its divisors is an integer number (414119424).

Almost surely, 2^828238847 is an apocalyptic number.

828238847 is a deficient number, since it is larger than the sum of its proper divisors (1).

828238847 is an equidigital number, since it uses as much as digits as its factorization.

828238847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1376256, while the sum is 50.

The square root of 828238847 is about 28779.1390941425. The cubic root of 828238847 is about 939.1144697270.

The spelling of 828238847 in words is "eight hundred twenty-eight million, two hundred thirty-eight thousand, eight hundred forty-seven".