890863 has 2 divisors, whose sum is σ = 890864. Its totient is φ = 890862.

The previous prime is 890861. The next prime is 890867. The reversal of 890863 is 368098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 890863 - 2¹ = 890861 is a prime.

Together with 890861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445431 + 445432.

It is an arithmetic number, because the mean of its divisors is an integer number (445432).

2⁸⁹⁰⁸⁶³ is an apocalyptic number.

890863 is a deficient number, since it is larger than the sum of its proper divisors (1).

890863 is an equidigital number, since it uses as much as digits as its factorization.

890863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 890863 is about 943.8553914663. The cubic root of 890863 is about 96.2210977481.

The spelling of 890863 in words is "eight hundred ninety thousand, eight hundred sixty-three".