908849 has 2 divisors, whose sum is σ = 908850. Its totient is φ = 908848.

The previous prime is 908821. The next prime is 908851. The reversal of 908849 is 948809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 889249 + 19600 = 943^2 + 140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-908849 is a prime.

Together with 908851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (908819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454424 + 454425.

It is an arithmetic number, because the mean of its divisors is an integer number (454425).

2⁹⁰⁸⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

908849 is a deficient number, since it is larger than the sum of its proper divisors (1).

908849 is an equidigital number, since it uses as much as digits as its factorization.

908849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 908849 is about 953.3357226077. The cubic root of 908849 is about 96.8643372239.

The spelling of 908849 in words is "nine hundred eight thousand, eight hundred forty-nine".