979191 has 6 divisors (see below), whose sum is σ = 1414400. Its totient is φ = 652788.

The previous prime is 979189. The next prime is 979201. The reversal of 979191 is 191979.

979191 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 979191 - 2¹ = 979189 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 (979171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54391 + ... + 54408.

2⁹⁷⁹¹⁹¹ is an apocalyptic number.

979191 is a deficient number, since it is larger than the sum of its proper divisors (435209).

979191 is a wasteful number, since it uses less digits than its factorization.

979191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108805 (or 108802 counting only the distinct ones).

The product of its digits is 5103, while the sum is 36.

The square root of 979191 is about 989.5408025948. The cubic root of 979191 is about 99.3014989901.

The spelling of 979191 in words is "nine hundred seventy-nine thousand, one hundred ninety-one".