888121 has 8 divisors (see below), whose sum is σ = 975240. Its totient is φ = 803712.

The previous prime is 888109. The next prime is 888133. The reversal of 888121 is 121888.

It is an interprime number because it is at equal distance from previous prime (888109) and next prime (888133).

It can be written as a sum of positive squares in 4 ways, for example, as 189225 + 698896 = 435^2 + 836^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 888121 - 2¹⁹ = 363833 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 888121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (888161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45 + ... + 1333.

It is an arithmetic number, because the mean of its divisors is an integer number (121905).

2⁸⁸⁸¹²¹ is an apocalyptic number.

It is an amenable number.

888121 is a deficient number, since it is larger than the sum of its proper divisors (87119).

888121 is a wasteful number, since it uses less digits than its factorization.

888121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355.

The product of its digits is 1024, while the sum is 28.

The square root of 888121 is about 942.4017190137. The cubic root of 888121 is about 96.1222761917.

The spelling of 888121 in words is "eight hundred eighty-eight thousand, one hundred twenty-one".