828865197 has 16 divisors (see below), whose sum is σ = 1267560960. Its totient is φ = 534751200.

The previous prime is 828865189. The next prime is 828865199. The reversal of 828865197 is 791568828.

It is not a de Polignac number, because 828865197 - 2³ = 828865189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828865199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494304 + ... + 495977.

It is an arithmetic number, because the mean of its divisors is an integer number (79222560).

Almost surely, 2^828865197 is an apocalyptic number.

It is an amenable number.

828865197 is a deficient number, since it is larger than the sum of its proper divisors (438695763).

828865197 is a wasteful number, since it uses less digits than its factorization.

828865197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990321 (or 990315 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 828865197 is about 28790.0190517478. The cubic root of 828865197 is about 939.3511430549.

The spelling of 828865197 in words is "eight hundred twenty-eight million, eight hundred sixty-five thousand, one hundred ninety-seven".