828145 has 8 divisors (see below), whose sum is σ = 1005480. Its totient is φ = 654720.

The previous prime is 828133. The next prime is 828169. The reversal of 828145 is 541828.

828145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 39601 + 788544 = 199^2 + 888^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 828145 - 2⁹ = 827633 is a prime.

It is an Ulam number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486 + ... + 1375.

It is an arithmetic number, because the mean of its divisors is an integer number (125685).

2⁸²⁸¹⁴⁵ is an apocalyptic number.

It is an amenable number.

828145 is a deficient number, since it is larger than the sum of its proper divisors (177335).

828145 is a wasteful number, since it uses less digits than its factorization.

828145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its digits is 2560, while the sum is 28.

The square root of 828145 is about 910.0247249388. The cubic root of 828145 is about 93.9078998315.

The spelling of 828145 in words is "eight hundred twenty-eight thousand, one hundred forty-five".