872818197 has 8 divisors (see below), whose sum is σ = 1195210656. Its totient is φ = 566152272.

The previous prime is 872818187. The next prime is 872818213. The reversal of 872818197 is 791818278.

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

It is not a de Polignac number, because 872818197 - 2⁸ = 872817941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872818187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3931503 + ... + 3931724.

It is an arithmetic number, because the mean of its divisors is an integer number (149401332).

Almost surely, 2^872818197 is an apocalyptic number.

It is an amenable number.

872818197 is a deficient number, since it is larger than the sum of its proper divisors (322392459).

872818197 is a wasteful number, since it uses less digits than its factorization.

872818197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863267.

The product of its digits is 451584, while the sum is 51.

The square root of 872818197 is about 29543.4966955504. The cubic root of 872818197 is about 955.6699508564.

It can be divided in two parts, 8728181 and 97, that added together give a palindrome (8728278).

The spelling of 872818197 in words is "eight hundred seventy-two million, eight hundred eighteen thousand, one hundred ninety-seven".