872316226 has 8 divisors (see below), whose sum is σ = 1329924924. Its totient is φ = 429007920.

The previous prime is 872316217. The next prime is 872316233. The reversal of 872316226 is 622613278.

It is a Cunningham number, because it is equal to 29535²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 872316225 + 1 = 29535^2 + 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3574945 + ... + 3575188.

Almost surely, 2^872316226 is an apocalyptic number.

872316226 is a deficient number, since it is larger than the sum of its proper divisors (457608698).

872316226 is a wasteful number, since it uses less digits than its factorization.

872316226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7150196.

The product of its digits is 48384, while the sum is 37.

The square root of 872316226 is about 29535.0000169291. Note that the first 4 decimals coincide. The cubic root of 872316226 is about 955.4867089562.

The spelling of 872316226 in words is "eight hundred seventy-two million, three hundred sixteen thousand, two hundred twenty-six".