890453 has 6 divisors (see below), whose sum is σ = 910434. Its totient is φ = 870896.

The previous prime is 890441. The next prime is 890459. The reversal of 890453 is 354098.

It can be written as a sum of positive squares in 3 ways, for example, as 103684 + 786769 = 322^2 + 887^2 .

It is not a de Polignac number, because 890453 - 2⁴ = 890437 is a prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 890453.

It is not an unprimeable number, because it can be changed into a prime (890459) 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 5 ways as a sum of consecutive naturals, for example, 2651 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (151739).

2⁸⁹⁰⁴⁵³ is an apocalyptic number.

It is an amenable number.

890453 is a deficient number, since it is larger than the sum of its proper divisors (19981).

890453 is an equidigital number, since it uses as much as digits as its factorization.

890453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 890453 is about 943.6381721825. The cubic root of 890453 is about 96.2063342720.

The spelling of 890453 in words is "eight hundred ninety thousand, four hundred fifty-three".