828057 has 4 divisors (see below), whose sum is σ = 1104080. Its totient is φ = 552036.

The previous prime is 828043. The next prime is 828059. The reversal of 828057 is 750828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 828057 - 2⁷ = 827929 is a prime.

It is a D-number.

It is a Duffinian number.

828057 is a lucky number.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 828057.

It is not an unprimeable number, because it can be changed into a prime (828059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138007 + ... + 138012.

It is an arithmetic number, because the mean of its divisors is an integer number (276020).

2⁸²⁸⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

828057 is a deficient number, since it is larger than the sum of its proper divisors (276023).

828057 is a wasteful number, since it uses less digits than its factorization.

828057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276022.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 828057 is about 909.9763733197. The cubic root of 828057 is about 93.9045734462.

The spelling of 828057 in words is "eight hundred twenty-eight thousand, fifty-seven".