820482678 has 36 divisors (see below), whose sum is σ = 1787205420. Its totient is φ = 272040888.

The previous prime is 820482661. The next prime is 820482701. The reversal of 820482678 is 876284028.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1244713 + ... + 1245371.

It is an arithmetic number, because the mean of its divisors is an integer number (49644595).

Almost surely, 2^820482678 is an apocalyptic number.

820482678 is an abundant number, since it is smaller than the sum of its proper divisors (966722742).

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

820482678 is a wasteful number, since it uses less digits than its factorization.

820482678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 820482678 is about 28644.0688101394. The cubic root of 820482678 is about 936.1737774540.

The spelling of 820482678 in words is "eight hundred twenty million, four hundred eighty-two thousand, six hundred seventy-eight".