890290 has 16 divisors (see below), whose sum is σ = 1697112. Its totient is φ = 335104.

The previous prime is 890287. The next prime is 890291. The reversal of 890290 is 92098.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 877969 + 12321 = 937^2 + 111^2 .

It is not an unprimeable number, because it can be changed into a prime (890291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2449 + ... + 2788.

2⁸⁹⁰²⁹⁰ is an apocalyptic number.

890290 is a deficient number, since it is larger than the sum of its proper divisors (806822).

890290 is a wasteful number, since it uses less digits than its factorization.

890290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 890290 is about 943.5518003798. The cubic root of 890290 is about 96.2004636311.

The spelling of 890290 in words is "eight hundred ninety thousand, two hundred ninety".