828957 has 4 divisors (see below), whose sum is σ = 1105280. Its totient is φ = 552636.

The previous prime is 828953. The next prime is 828967. The reversal of 828957 is 759828.

828957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 828957 - 2² = 828953 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828953) 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, 138157 + ... + 138162.

It is an arithmetic number, because the mean of its divisors is an integer number (276320).

2⁸²⁸⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

828957 is a deficient number, since it is larger than the sum of its proper divisors (276323).

828957 is a wasteful number, since it uses less digits than its factorization.

828957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276322.

The product of its digits is 40320, while the sum is 39.

The square root of 828957 is about 910.4707573558. The cubic root of 828957 is about 93.9385821822.

The spelling of 828957 in words is "eight hundred twenty-eight thousand, nine hundred fifty-seven".