828169 has 2 divisors, whose sum is σ = 828170. Its totient is φ = 828168.

The previous prime is 828133. The next prime is 828199. The reversal of 828169 is 961828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 783225 + 44944 = 885^2 + 212^2 .

It is a cyclic number.

It is not a de Polignac number, because 828169 - 2¹³ = 819977 is a prime.

It is a super-2 number, since 2×828169² = 1371727785122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (828109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414084 + 414085.

It is an arithmetic number, because the mean of its divisors is an integer number (414085).

2⁸²⁸¹⁶⁹ is an apocalyptic number.

It is an amenable number.

828169 is a deficient number, since it is larger than the sum of its proper divisors (1).

828169 is an equidigital number, since it uses as much as digits as its factorization.

828169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 828169 is about 910.0379112982. The cubic root of 828169 is about 93.9088069866.

The spelling of 828169 in words is "eight hundred twenty-eight thousand, one hundred sixty-nine".