820703912 has 32 divisors (see below), whose sum is σ = 1767011520. Its totient is φ = 350058240.

The previous prime is 820703911. The next prime is 820703921. The reversal of 820703912 is 219307028.

820703912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×820703912² = 1347109822344207488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (820703911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22913 + ... + 46544.

It is an arithmetic number, because the mean of its divisors is an integer number (55219110).

Almost surely, 2^820703912 is an apocalyptic number.

It is an amenable number.

820703912 is an abundant number, since it is smaller than the sum of its proper divisors (946307608).

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

820703912 is a wasteful number, since it uses less digits than its factorization.

820703912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69681 (or 69677 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 820703912 is about 28647.9303266397. The cubic root of 820703912 is about 936.2579128305.

The spelling of 820703912 in words is "eight hundred twenty million, seven hundred three thousand, nine hundred twelve".