7211730706 has 16 divisors (see below), whose sum is σ = 11462362560. Its totient is φ = 3393457200.

The previous prime is 7211730679. The next prime is 7211730719. The reversal of 7211730706 is 6070371127.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622681 + ... + 634156.

It is an arithmetic number, because the mean of its divisors is an integer number (716397660).

Almost surely, 2^7211730706 is an apocalyptic number.

7211730706 is a deficient number, since it is larger than the sum of its proper divisors (4250631854).

7211730706 is a wasteful number, since it uses less digits than its factorization.

7211730706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257009.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 7211730706 is about 84921.9094580427. The cubic root of 7211730706 is about 1932.0268920567.

The spelling of 7211730706 in words is "seven billion, two hundred eleven million, seven hundred thirty thousand, seven hundred six".