888669 has 12 divisors (see below), whose sum is σ = 1291836. Its totient is φ = 588672.

The previous prime is 888661. The next prime is 888683. The reversal of 888669 is 966888.

It can be written as a sum of positive squares in 2 ways, for example, as 580644 + 308025 = 762^2 + 555^2 .

It is not a de Polignac number, because 888669 - 2³ = 888661 is a prime.

It is a super-2 number, since 2×888669² = 1579465183122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (888661) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2469 + ... + 2805.

It is an arithmetic number, because the mean of its divisors is an integer number (107653).

2⁸⁸⁸⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

888669 is a deficient number, since it is larger than the sum of its proper divisors (403167).

888669 is a wasteful number, since it uses less digits than its factorization.

888669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 633 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 888669 is about 942.6924206760. The cubic root of 888669 is about 96.1420423336.

The spelling of 888669 in words is "eight hundred eighty-eight thousand, six hundred sixty-nine".