890842 has 8 divisors (see below), whose sum is σ = 1343232. Its totient is φ = 443100.

The previous prime is 890833. The next prime is 890843. The reversal of 890842 is 248098.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (890843) 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 3 ways as a sum of consecutive naturals, for example, 634 + ... + 1477.

It is an arithmetic number, because the mean of its divisors is an integer number (167904).

2⁸⁹⁰⁸⁴² is an apocalyptic number.

890842 is a deficient number, since it is larger than the sum of its proper divisors (452390).

890842 is a wasteful number, since it uses less digits than its factorization.

890842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 890842 is about 943.8442668152. The cubic root of 890842 is about 96.2203416801.

The spelling of 890842 in words is "eight hundred ninety thousand, eight hundred forty-two".