706331 has 4 divisors (see below), whose sum is σ = 719712. Its totient is φ = 692952.

The previous prime is 706313. The next prime is 706337. The reversal of 706331 is 133607.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 706331 - 2⁶ = 706267 is a prime.

It is a super-2 number, since 2×706331² = 997806963122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706337) 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 3 ways as a sum of consecutive naturals, for example, 6611 + ... + 6716.

It is an arithmetic number, because the mean of its divisors is an integer number (179928).

2⁷⁰⁶³³¹ is an apocalyptic number.

706331 is a deficient number, since it is larger than the sum of its proper divisors (13381).

706331 is a wasteful number, since it uses less digits than its factorization.

706331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13380.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 706331 is about 840.4350064104. The cubic root of 706331 is about 89.0572791235.

Adding to 706331 its reverse (133607), we get a palindrome (839938).

The spelling of 706331 in words is "seven hundred six thousand, three hundred thirty-one".