820483686 has 24 divisors (see below), whose sum is σ = 1939325544. Its totient is φ = 248631360.

The previous prime is 820483667. The next prime is 820483687. The reversal of 820483686 is 686384028.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820483687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2071731 + ... + 2072126.

It is an arithmetic number, because the mean of its divisors is an integer number (80805231).

Almost surely, 2^820483686 is an apocalyptic number.

820483686 is an abundant number, since it is smaller than the sum of its proper divisors (1118841858).

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

820483686 is a wasteful number, since it uses less digits than its factorization.

820483686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143876 (or 4143873 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 820483686 is about 28644.0864053996. The cubic root of 820483686 is about 936.1741608311.

The spelling of 820483686 in words is "eight hundred twenty million, four hundred eighty-three thousand, six hundred eighty-six".