890459 has 2 divisors, whose sum is σ = 890460. Its totient is φ = 890458.

The previous prime is 890441. The next prime is 890467. The reversal of 890459 is 954098.

890459 is nontrivially palindromic in base 8.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890459 is a prime.

It is not a weakly prime, because it can be changed into another prime (890419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445229 + 445230.

It is an arithmetic number, because the mean of its divisors is an integer number (445230).

2⁸⁹⁰⁴⁵⁹ is an apocalyptic number.

890459 is a deficient number, since it is larger than the sum of its proper divisors (1).

890459 is an equidigital number, since it uses as much as digits as its factorization.

890459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 890459 is about 943.6413513618. The cubic root of 890459 is about 96.2065503555.

The spelling of 890459 in words is "eight hundred ninety thousand, four hundred fifty-nine".