872197282 has 12 divisors (see below), whose sum is σ = 1438044678. Its totient is φ = 396453200.

The previous prime is 872197273. The next prime is 872197289. The reversal of 872197282 is 282791278.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 861950881 + 10246401 = 29359^2 + 3201^2 .

It is not an unprimeable number, because it can be changed into a prime (872197289) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1801819 + ... + 1802302.

Almost surely, 2^872197282 is an apocalyptic number.

872197282 is a deficient number, since it is larger than the sum of its proper divisors (565847396).

872197282 is a wasteful number, since it uses less digits than its factorization.

872197282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604145 (or 3604134 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The square root of 872197282 is about 29532.9863373144. The cubic root of 872197282 is about 955.4432787667.

The spelling of 872197282 in words is "eight hundred seventy-two million, one hundred ninety-seven thousand, two hundred eighty-two".