890530 has 32 divisors (see below), whose sum is σ = 1742400. Its totient is φ = 326592.

The previous prime is 890501. The next prime is 890531. The reversal of 890530 is 35098.

890530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 890495 and 890504.

It is not an unprimeable number, because it can be changed into a prime (890531) by changing a digit.

890530 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8116 + ... + 8224.

It is an arithmetic number, because the mean of its divisors is an integer number (54450).

2⁸⁹⁰⁵³⁰ is an apocalyptic number.

890530 is a deficient number, since it is larger than the sum of its proper divisors (851870).

890530 is a wasteful number, since it uses less digits than its factorization.

890530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 890530 is about 943.6789708370. The cubic root of 890530 is about 96.2091072704.

The spelling of 890530 in words is "eight hundred ninety thousand, five hundred thirty".