868177825 has 6 divisors (see below), whose sum is σ = 1076540534. Its totient is φ = 694542240.

The previous prime is 868177819. The next prime is 868177841. The reversal of 868177825 is 528771868.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 297493504 + 570684321 = 17248^2 + 23889^2 .

It is not a de Polignac number, because 868177825 - 2⁹ = 868177313 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 17363532 + ... + 17363581.

Almost surely, 2^868177825 is an apocalyptic number.

It is an amenable number.

868177825 is a deficient number, since it is larger than the sum of its proper divisors (208362709).

868177825 is a wasteful number, since it uses less digits than its factorization.

868177825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34727123 (or 34727118 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 52.

The square root of 868177825 is about 29464.8574576562. The cubic root of 868177825 is about 953.9733217022.

The spelling of 868177825 in words is "eight hundred sixty-eight million, one hundred seventy-seven thousand, eight hundred twenty-five".