828312538 has 8 divisors (see below), whose sum is σ = 1248041088. Its totient is φ = 412298844.

The previous prime is 828312533. The next prime is 828312571. The reversal of 828312538 is 835213828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×828312538² = 1372203321216002888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 828312538.

It is not an unprimeable number, because it can be changed into a prime (828312533) 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 3 ways as a sum of consecutive naturals, for example, 928156 + ... + 929047.

It is an arithmetic number, because the mean of its divisors is an integer number (156005136).

Almost surely, 2^828312538 is an apocalyptic number.

828312538 is a deficient number, since it is larger than the sum of its proper divisors (419728550).

828312538 is a wasteful number, since it uses less digits than its factorization.

828312538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857428.

The product of its digits is 92160, while the sum is 40.

The square root of 828312538 is about 28780.4193506627. The cubic root of 828312538 is about 939.1423208846.

The spelling of 828312538 in words is "eight hundred twenty-eight million, three hundred twelve thousand, five hundred thirty-eight".