28283839684 has 9 divisors (see below), whose sum is σ = 49497308077. Its totient is φ = 14141751664.

The previous prime is 28283839579. The next prime is 28283839691. The reversal of 28283839684 is 48693838282.

The square root of 28283839684 is 168178.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18042399684 + 10241440000 = 134322^2 + 101200^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 294312 + ... + 378400.

Almost surely, 2^28283839684 is an apocalyptic number.

28283839684 is the 168178-th square number.

It is an amenable number.

28283839684 is a deficient number, since it is larger than the sum of its proper divisors (21213468393).

28283839684 is an frugal number, since it uses more digits than its factorization.

28283839684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168182 (or 84091 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 61.

The spelling of 28283839684 in words is "twenty-eight billion, two hundred eighty-three million, eight hundred thirty-nine thousand, six hundred eighty-four".