1088889 has 16 divisors (see below), whose sum is σ = 1554432. Its totient is φ = 676368.

The previous prime is 1088851. The next prime is 1088903. The reversal of 1088889 is 9888801.

It is a happy number.

It is not a de Polignac number, because 1088889 - 2⁷ = 1088761 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1088889.

It is not an unprimeable number, because it can be changed into a prime (1088839) 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 15 ways as a sum of consecutive naturals, for example, 2784 + ... + 3150.

It is an arithmetic number, because the mean of its divisors is an integer number (97152).

2^1088889 is an apocalyptic number.

It is an amenable number.

1088889 is a deficient number, since it is larger than the sum of its proper divisors (465543).

1088889 is a wasteful number, since it uses less digits than its factorization.

1088889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 1088889 is about 1043.4984427396. The cubic root of 1088889 is about 102.8792691046.

The spelling of 1088889 in words is "one million, eighty-eight thousand, eight hundred eighty-nine".