820284708 has 12 divisors (see below), whose sum is σ = 1913997680. Its totient is φ = 273428232.

The previous prime is 820284679. The next prime is 820284713. The reversal of 820284708 is 807482028.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34178518 + ... + 34178541.

Almost surely, 2^820284708 is an apocalyptic number.

It is an amenable number.

820284708 is an abundant number, since it is smaller than the sum of its proper divisors (1093712972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

820284708 is a wasteful number, since it uses less digits than its factorization.

820284708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68357066 (or 68357064 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 820284708 is about 28640.6129124361. The cubic root of 820284708 is about 936.0984765627.

It can be divided in two parts, 82028 and 4708, that added together give a triangular number (86736 = T₄₁₆).

The spelling of 820284708 in words is "eight hundred twenty million, two hundred eighty-four thousand, seven hundred eight".