872872226 has 4 divisors (see below), whose sum is σ = 1309308342. Its totient is φ = 436436112.

The previous prime is 872872223. The next prime is 872872237. The reversal of 872872226 is 622278278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 862303225 + 10569001 = 29365^2 + 3251^2 .

It is not an unprimeable number, because it can be changed into a prime (872872223) by changing a digit.

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 as a sum of consecutive naturals, namely, 218218055 + ... + 218218058.

Almost surely, 2^872872226 is an apocalyptic number.

872872226 is a deficient number, since it is larger than the sum of its proper divisors (436436116).

872872226 is a wasteful number, since it uses less digits than its factorization.

872872226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436436115.

The product of its digits is 301056, while the sum is 44.

The square root of 872872226 is about 29544.4110789164. The cubic root of 872872226 is about 955.6896696732.

The spelling of 872872226 in words is "eight hundred seventy-two million, eight hundred seventy-two thousand, two hundred twenty-six".