890812 has 24 divisors (see below), whose sum is σ = 1727936. Its totient is φ = 399168.

The previous prime is 890809. The next prime is 890821. The reversal of 890812 is 218098.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1693 + ... + 2155.

2⁸⁹⁰⁸¹² is an apocalyptic number.

It is an amenable number.

890812 is a deficient number, since it is larger than the sum of its proper divisors (837124).

890812 is a wasteful number, since it uses less digits than its factorization.

890812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 890812 is about 943.8283742291. The cubic root of 890812 is about 96.2192615624.

The spelling of 890812 in words is "eight hundred ninety thousand, eight hundred twelve".