321406706 has 8 divisors (see below), whose sum is σ = 483369984. Its totient is φ = 160283380.

The previous prime is 321406703. The next prime is 321406711. The reversal of 321406706 is 607604123.

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

It is not an unprimeable number, because it can be changed into a prime (321406703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209030 + ... + 210561.

It is an arithmetic number, because the mean of its divisors is an integer number (60421248).

Almost surely, 2^321406706 is an apocalyptic number.

321406706 is a deficient number, since it is larger than the sum of its proper divisors (161963278).

321406706 is a wasteful number, since it uses less digits than its factorization.

321406706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419976.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 321406706 is about 17927.8193319768. The cubic root of 321406706 is about 684.9911775375.

The spelling of 321406706 in words is "three hundred twenty-one million, four hundred six thousand, seven hundred six".