706840 has 32 divisors (see below), whose sum is σ = 1632960. Its totient is φ = 275200.

The previous prime is 706837. The next prime is 706841. The reversal of 706840 is 48607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706841) 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, 1425 + ... + 1855.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2⁷⁰⁶⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 706840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816480).

706840 is an abundant number, since it is smaller than the sum of its proper divisors (926120).

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

706840 is a wasteful number, since it uses less digits than its factorization.

706840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 706840 is about 840.7377712462. The cubic root of 706840 is about 89.0786662969.

The spelling of 706840 in words is "seven hundred six thousand, eight hundred forty".