876217684225 has 27 divisors (see below), whose sum is σ = 1176598370619. Its totient is φ = 647008128000.

The previous prime is 876217684217. The next prime is 876217684297. The reversal of 876217684225 is 522486712678.

The square root of 876217684225 is 936065.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 238736800449 + 637480883776 = 488607^2 + 798424^2 .

It is not a de Polignac number, because 876217684225 - 2³ = 876217684217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 876217684225.

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 26 ways as a sum of consecutive naturals, for example, 60837025 + ... + 60851425.

Almost surely, 2^876217684225 is an apocalyptic number.

876217684225 is the 936065-th square number.

876217684225 is the 468033-rd centered octagonal number.

It is an amenable number.

876217684225 is a deficient number, since it is larger than the sum of its proper divisors (300380686394).

876217684225 is an frugal number, since it uses more digits than its factorization.

876217684225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28838 (or 14419 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 58.

The spelling of 876217684225 in words is "eight hundred seventy-six billion, two hundred seventeen million, six hundred eighty-four thousand, two hundred twenty-five".