7221704605 has 8 divisors (see below), whose sum is σ = 8666595000. Its totient is φ = 5776997376.

The previous prime is 7221704593. The next prime is 7221704629. The reversal of 7221704605 is 5064071227.

It can be written as a sum of positive squares in 4 ways, for example, as 95981209 + 7125723396 = 9797^2 + 84414^2 .

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 7221704605 - 2¹³ = 7221696413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65581 + ... + 136909.

It is an arithmetic number, because the mean of its divisors is an integer number (1083324375).

Almost surely, 2^7221704605 is an apocalyptic number.

It is an amenable number.

7221704605 is a deficient number, since it is larger than the sum of its proper divisors (1444890395).

7221704605 is a wasteful number, since it uses less digits than its factorization.

7221704605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91583.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 7221704605 is about 84980.6131126388. The cubic root of 7221704605 is about 1932.9171529028.

The spelling of 7221704605 in words is "seven billion, two hundred twenty-one million, seven hundred four thousand, six hundred five".