706820 has 24 divisors (see below), whose sum is σ = 1512000. Its totient is φ = 277472.

The previous prime is 706801. The next prime is 706829. The reversal of 706820 is 28607.

It is not an unprimeable number, because it can be changed into a prime (706829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881 + ... + 1479.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2⁷⁰⁶⁸²⁰ is an apocalyptic number.

It is an amenable number.

706820 is an abundant number, since it is smaller than the sum of its proper divisors (805180).

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

706820 is a wasteful number, since it uses less digits than its factorization.

706820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 706820 is about 840.7258768469. The cubic root of 706820 is about 89.0778261303.

The spelling of 706820 in words is "seven hundred six thousand, eight hundred twenty".