908885 has 4 divisors (see below), whose sum is σ = 1090668. Its totient is φ = 727104.

The previous prime is 908881. The next prime is 908893. The reversal of 908885 is 588809.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588809 = 13 ⋅45293.

It can be written as a sum of positive squares in 2 ways, for example, as 303601 + 605284 = 551^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 908885 - 2² = 908881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (908881) 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 3 ways as a sum of consecutive naturals, for example, 90884 + ... + 90893.

It is an arithmetic number, because the mean of its divisors is an integer number (272667).

2⁹⁰⁸⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

908885 is a deficient number, since it is larger than the sum of its proper divisors (181783).

908885 is a wasteful number, since it uses less digits than its factorization.

908885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181782.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 908885 is about 953.3546034923. The cubic root of 908885 is about 96.8656161566.

The spelling of 908885 in words is "nine hundred eight thousand, eight hundred eighty-five".