8221829690 has 16 divisors (see below), whose sum is σ = 14806257192. Its totient is φ = 3287184384.

The previous prime is 8221829659. The next prime is 8221829717. The reversal of 8221829690 is 969281228.

It can be written as a sum of positive squares in 4 ways, for example, as 4809283801 + 3412545889 = 69349^2 + 58417^2 .

It is a super-2 number, since 2×8221829690² (a number of 21 digits) contains 22 as substring.

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, 170999 + ... + 213738.

Almost surely, 2^8221829690 is an apocalyptic number.

8221829690 is a deficient number, since it is larger than the sum of its proper divisors (6584427502).

8221829690 is a wasteful number, since it uses less digits than its factorization.

8221829690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386881.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 8221829690 is about 90674.3055666819. The cubic root of 8221829690 is about 2018.3175293824.

The spelling of 8221829690 in words is "eight billion, two hundred twenty-one million, eight hundred twenty-nine thousand, six hundred ninety".