825197 has 4 divisors (see below), whose sum is σ = 873756. Its totient is φ = 776640.

The previous prime is 825193. The next prime is 825199. The reversal of 825197 is 791528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264196 + 561001 = 514^2 + 749^2 .

It is a cyclic number.

It is not a de Polignac number, because 825197 - 2² = 825193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825191) 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, 24254 + ... + 24287.

It is an arithmetic number, because the mean of its divisors is an integer number (218439).

2⁸²⁵¹⁹⁷ is an apocalyptic number.

It is an amenable number.

825197 is a deficient number, since it is larger than the sum of its proper divisors (48559).

825197 is a wasteful number, since it uses less digits than its factorization.

825197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48558.

The product of its digits is 5040, while the sum is 32.

The square root of 825197 is about 908.4035446871. The cubic root of 825197 is about 93.7963373896.

The spelling of 825197 in words is "eight hundred twenty-five thousand, one hundred ninety-seven".