890287 has 2 divisors, whose sum is σ = 890288. Its totient is φ = 890286.

The previous prime is 890237. The next prime is 890291. The reversal of 890287 is 782098.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 890287 - 2⁷ = 890159 is a prime.

It is a super-2 number, since 2×890287² = 1585221884738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890237) 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 as a sum of consecutive naturals, namely, 445143 + 445144.

It is an arithmetic number, because the mean of its divisors is an integer number (445144).

2⁸⁹⁰²⁸⁷ is an apocalyptic number.

890287 is a deficient number, since it is larger than the sum of its proper divisors (1).

890287 is an equidigital number, since it uses as much as digits as its factorization.

890287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 890287 is about 943.5502106406. The cubic root of 890287 is about 96.2003555758.

The spelling of 890287 in words is "eight hundred ninety thousand, two hundred eighty-seven".