890668 has 12 divisors (see below), whose sum is σ = 1573992. Its totient is φ = 440960.

The previous prime is 890657. The next prime is 890671. The reversal of 890668 is 866098.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 613 + ... + 1468.

It is an arithmetic number, because the mean of its divisors is an integer number (131166).

2⁸⁹⁰⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

890668 is a deficient number, since it is larger than the sum of its proper divisors (683324).

890668 is a wasteful number, since it uses less digits than its factorization.

890668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192 (or 2190 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 890668 is about 943.7520860904. The cubic root of 890668 is about 96.2140766598.

The spelling of 890668 in words is "eight hundred ninety thousand, six hundred sixty-eight".