886865121 has 6 divisors (see below), whose sum is σ = 1281027410. Its totient is φ = 591243408.

The previous prime is 886865107. The next prime is 886865141. The reversal of 886865121 is 121568688.

It can be written as a sum of positive squares in only one way, i.e., 863478225 + 23386896 = 29385^2 + 4836^2 .

It is not a de Polignac number, because 886865121 - 2¹⁷ = 886734049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (886865141) 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, 49270276 + ... + 49270293.

Almost surely, 2^886865121 is an apocalyptic number.

It is an amenable number.

886865121 is a deficient number, since it is larger than the sum of its proper divisors (394162289).

886865121 is a wasteful number, since it uses less digits than its factorization.

886865121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98540575 (or 98540572 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 886865121 is about 29780.2807407855. The cubic root of 886865121 is about 960.7694644700.

The spelling of 886865121 in words is "eight hundred eighty-six million, eight hundred sixty-five thousand, one hundred twenty-one".