820062004 has 24 divisors (see below), whose sum is σ = 1486991520. Its totient is φ = 395469984.

The previous prime is 820061981. The next prime is 820062007. The reversal of 820062004 is 400260028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820062007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20274 + ... + 45289.

It is an arithmetic number, because the mean of its divisors is an integer number (61957980).

Almost surely, 2^820062004 is an apocalyptic number.

It is an amenable number.

820062004 is a deficient number, since it is larger than the sum of its proper divisors (666929516).

820062004 is a wasteful number, since it uses less digits than its factorization.

820062004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65679 (or 65677 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 820062004 is about 28636.7247428892. The cubic root of 820062004 is about 936.0137532374.

The spelling of 820062004 in words is "eight hundred twenty million, sixty-two thousand, four".