8729910722 has 8 divisors (see below), whose sum is σ = 14102163516. Its totient is φ = 4029189552.

The previous prime is 8729910661. The next prime is 8729910743. The reversal of 8729910722 is 2270199278.

It can be written as a sum of positive squares in 2 ways, for example, as 8026547281 + 703363441 = 89591^2 + 26521^2 .

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

It is a super-2 number, since 2×8729910722² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167882873 + ... + 167882924.

Almost surely, 2^8729910722 is an apocalyptic number.

8729910722 is a deficient number, since it is larger than the sum of its proper divisors (5372252794).

8729910722 is a wasteful number, since it uses less digits than its factorization.

8729910722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335765812.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 8729910722 is about 93433.9912558593. The cubic root of 8729910722 is about 2059.0644196279.

The spelling of 8729910722 in words is "eight billion, seven hundred twenty-nine million, nine hundred ten thousand, seven hundred twenty-two".