867617225 has 6 divisors (see below), whose sum is σ = 1075845390. Its totient is φ = 694093760.

The previous prime is 867617221. The next prime is 867617251. The reversal of 867617225 is 522716768.

It can be written as a sum of positive squares in 3 ways, for example, as 10942864 + 856674361 = 3308^2 + 29269^2 .

It is not a de Polignac number, because 867617225 - 2² = 867617221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (867617221) 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, 17352320 + ... + 17352369.

It is an arithmetic number, because the mean of its divisors is an integer number (179307565).

Almost surely, 2^867617225 is an apocalyptic number.

It is an amenable number.

867617225 is a deficient number, since it is larger than the sum of its proper divisors (208228165).

867617225 is a wasteful number, since it uses less digits than its factorization.

867617225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34704699 (or 34704694 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 867617225 is about 29455.3428939471. The cubic root of 867617225 is about 953.7679441940.

The spelling of 867617225 in words is "eight hundred sixty-seven million, six hundred seventeen thousand, two hundred twenty-five".