8212890626 has 8 divisors (see below), whose sum is σ = 12322668540. Its totient is φ = 4105334448.

The previous prime is 8212890613. The next prime is 8212890691. The reversal of 8212890626 is 6260982128.

It is a Cunningham number, because it is equal to 90625²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 8212890625 + 1 = 90625^2 + 1^2 .

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

It is an unprimeable number.

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, 546161 + ... + 560996.

Almost surely, 2^8212890626 is an apocalyptic number.

8212890626 is a deficient number, since it is larger than the sum of its proper divisors (4109777914).

8212890626 is a wasteful number, since it uses less digits than its factorization.

8212890626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110868.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 8212890626 is about 90625.0000055172. Note that the first 5 decimals coincide. The cubic root of 8212890626 is about 2017.5858020668.

The spelling of 8212890626 in words is "eight billion, two hundred twelve million, eight hundred ninety thousand, six hundred twenty-six".