908649 has 12 divisors (see below), whose sum is σ = 1500096. Its totient is φ = 519192.

The previous prime is 908627. The next prime is 908653. The reversal of 908649 is 946809.

908649 is a `hidden beast` number, since 9 + 0 + 8 + 649 = 666.

It is not a de Polignac number, because 908649 - 2⁵ = 908617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (908669) 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, 7149 + ... + 7274.

It is an arithmetic number, because the mean of its divisors is an integer number (125008).

2⁹⁰⁸⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

908649 is a deficient number, since it is larger than the sum of its proper divisors (591447).

908649 is a wasteful number, since it uses less digits than its factorization.

908649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436 (or 14433 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 908649 is about 953.2308219943. The cubic root of 908649 is about 96.8572314272.

The spelling of 908649 in words is "nine hundred eight thousand, six hundred forty-nine".