825380 has 12 divisors (see below), whose sum is σ = 1733340. Its totient is φ = 330144.

The previous prime is 825361. The next prime is 825389. The reversal of 825380 is 83528.

It can be written as a sum of positive squares in 2 ways, for example, as 106276 + 719104 = 326^2 + 848^2 .

It is not an unprimeable number, because it can be changed into a prime (825389) by changing a digit.

825380 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20615 + ... + 20654.

It is an arithmetic number, because the mean of its divisors is an integer number (144445).

2⁸²⁵³⁸⁰ is an apocalyptic number.

It is an amenable number.

825380 is an abundant number, since it is smaller than the sum of its proper divisors (907960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

825380 is a wasteful number, since it uses less digits than its factorization.

825380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41278 (or 41276 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 825380 is about 908.5042652624. The cubic root of 825380 is about 93.8032704658.

The spelling of 825380 in words is "eight hundred twenty-five thousand, three hundred eighty".