890201 has 4 divisors (see below), whose sum is σ = 958692. Its totient is φ = 821712.

The previous prime is 890177. The next prime is 890221. The reversal of 890201 is 102098.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 366025 + 524176 = 605^2 + 724^2 .

It is a cyclic number.

It is not a de Polignac number, because 890201 - 2¹⁰ = 889177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (890221) 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 3 ways as a sum of consecutive naturals, for example, 34226 + ... + 34251.

It is an arithmetic number, because the mean of its divisors is an integer number (239673).

2⁸⁹⁰²⁰¹ is an apocalyptic number.

It is an amenable number.

890201 is a deficient number, since it is larger than the sum of its proper divisors (68491).

890201 is a wasteful number, since it uses less digits than its factorization.

890201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68490.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 890201 is about 943.5046369785. The cubic root of 890201 is about 96.1972578867.

Adding to 890201 its reverse (102098), we get a palindrome (992299).

It can be divided in two parts, 8 and 90201, that added together give a palindrome (90209).

The spelling of 890201 in words is "eight hundred ninety thousand, two hundred one".