879191 has 8 divisors (see below), whose sum is σ = 921600. Its totient is φ = 837720.

The previous prime is 879181. The next prime is 879199. The reversal of 879191 is 191978.

879191 = 64² + 65² + ... + 142².

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

It is a cyclic number.

It is not a de Polignac number, because 879191 - 2¹⁰ = 878167 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2270 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (115200).

2⁸⁷⁹¹⁹¹ is an apocalyptic number.

879191 is a deficient number, since it is larger than the sum of its proper divisors (42409).

879191 is a wasteful number, since it uses less digits than its factorization.

879191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its digits is 4536, while the sum is 35.

The square root of 879191 is about 937.6518543681. The cubic root of 879191 is about 95.7990225419.

The spelling of 879191 in words is "eight hundred seventy-nine thousand, one hundred ninety-one".