820080700 has 36 divisors (see below), whose sum is σ = 1787073120. Its totient is φ = 326650240.

The previous prime is 820080671. The next prime is 820080757. The reversal of 820080700 is 7080028.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6744 + ... + 41056.

It is an arithmetic number, because the mean of its divisors is an integer number (49640920).

Almost surely, 2^820080700 is an apocalyptic number.

It is an amenable number.

820080700 is an abundant number, since it is smaller than the sum of its proper divisors (966992420).

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

820080700 is a wasteful number, since it uses less digits than its factorization.

820080700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34566 (or 34559 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 820080700 is about 28637.0511750075. The cubic root of 820080700 is about 936.0208663500.

The spelling of 820080700 in words is "eight hundred twenty million, eighty thousand, seven hundred".