828748239 has 24 divisors (see below), whose sum is σ = 1217454336. Its totient is φ = 501085200.

The previous prime is 828748229. The next prime is 828748241. The reversal of 828748239 is 932847828.

It is not a de Polignac number, because 828748239 - 2¹⁵ = 828715471 is a prime.

It is a super-2 number, since 2×828748239² = 1373647287291202242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 828748191 and 828748200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828748229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165604 + ... + 170534.

It is an arithmetic number, because the mean of its divisors is an integer number (50727264).

Almost surely, 2^828748239 is an apocalyptic number.

828748239 is a deficient number, since it is larger than the sum of its proper divisors (388706097).

828748239 is a wasteful number, since it uses less digits than its factorization.

828748239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419 (or 5408 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 828748239 is about 28787.9877553121. The cubic root of 828748239 is about 939.3069582267.

The spelling of 828748239 in words is "eight hundred twenty-eight million, seven hundred forty-eight thousand, two hundred thirty-nine".