706405 has 8 divisors (see below), whose sum is σ = 968832. Its totient is φ = 484368.

The previous prime is 706403. The next prime is 706417. The reversal of 706405 is 504607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 706405 - 2¹ = 706403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 706405.

It is not an unprimeable number, because it can be changed into a prime (706403) 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 7 ways as a sum of consecutive naturals, for example, 10057 + ... + 10126.

It is an arithmetic number, because the mean of its divisors is an integer number (121104).

2⁷⁰⁶⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

706405 is a deficient number, since it is larger than the sum of its proper divisors (262427).

706405 is a wasteful number, since it uses less digits than its factorization.

706405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20195.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 706405 is about 840.4790300775. The cubic root of 706405 is about 89.0603890953.

It can be divided in two parts, 706 and 405, that added together give a palindrome (1111).

The spelling of 706405 in words is "seven hundred six thousand, four hundred five".