706385820 has 48 divisors (see below), whose sum is σ = 2260435968. Its totient is φ = 161459520.

The previous prime is 706385803. The next prime is 706385839. The reversal of 706385820 is 28583607.

706385820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840516 + ... + 841355.

It is an arithmetic number, because the mean of its divisors is an integer number (47092416).

Almost surely, 2^706385820 is an apocalyptic number.

706385820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

706385820 is an abundant number, since it is smaller than the sum of its proper divisors (1554050148).

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

706385820 is a wasteful number, since it uses less digits than its factorization.

706385820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681890 (or 1681888 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 706385820 is about 26577.9197831584. The cubic root of 706385820 is about 890.5958304512.

The spelling of 706385820 in words is "seven hundred six million, three hundred eighty-five thousand, eight hundred twenty".