879982191 has 16 divisors (see below), whose sum is σ = 1422193920. Its totient is φ = 533322360.

The previous prime is 879982171. The next prime is 879982217. The reversal of 879982191 is 191289978.

It is not a de Polignac number, because 879982191 - 2⁶ = 879982127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879982171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1481155 + ... + 1481748.

It is an arithmetic number, because the mean of its divisors is an integer number (88887120).

Almost surely, 2^879982191 is an apocalyptic number.

879982191 is a deficient number, since it is larger than the sum of its proper divisors (542211729).

879982191 is a wasteful number, since it uses less digits than its factorization.

879982191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962923 (or 2962917 counting only the distinct ones).

The product of its digits is 653184, while the sum is 54.

The square root of 879982191 is about 29664.4937762302. The cubic root of 879982191 is about 958.2775069450.

The spelling of 879982191 in words is "eight hundred seventy-nine million, nine hundred eighty-two thousand, one hundred ninety-one".