908881 has 2 divisors, whose sum is σ = 908882. Its totient is φ = 908880.

The previous prime is 908879. The next prime is 908893. The reversal of 908881 is 188809.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883600 + 25281 = 940^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 908881 - 2¹ = 908879 is a prime.

It is a super-2 number, since 2×908881² = 1652129344322, which contains 22 as substring.

Together with 908879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (908821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454440 + 454441.

It is an arithmetic number, because the mean of its divisors is an integer number (454441).

2⁹⁰⁸⁸⁸¹ is an apocalyptic number.

It is an amenable number.

908881 is a deficient number, since it is larger than the sum of its proper divisors (1).

908881 is an equidigital number, since it uses as much as digits as its factorization.

908881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 908881 is about 953.3525056347. The cubic root of 908881 is about 96.8654740547.

The spelling of 908881 in words is "nine hundred eight thousand, eight hundred eighty-one".