706215 has 24 divisors (see below), whose sum is σ = 1194480. Its totient is φ = 356224.

The previous prime is 706213. The next prime is 706229. The reversal of 706215 is 512607.

It is not a de Polignac number, because 706215 - 2¹ = 706213 is a prime.

706215 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 706191 and 706200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7891 + ... + 7979.

It is an arithmetic number, because the mean of its divisors is an integer number (49770).

2⁷⁰⁶²¹⁵ is an apocalyptic number.

706215 is a deficient number, since it is larger than the sum of its proper divisors (488265).

706215 is a wasteful number, since it uses less digits than its factorization.

706215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 706215 is about 840.3659916965. The cubic root of 706215 is about 89.0524035954.

The spelling of 706215 in words is "seven hundred six thousand, two hundred fifteen".