979944191 has 8 divisors (see below), whose sum is σ = 1014167280. Its totient is φ = 945749952.

The previous prime is 979944181. The next prime is 979944197. The reversal of 979944191 is 191449979.

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 979944191 - 2¹⁴ = 979927807 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 (979944197) 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, 79916 + ... + 91358.

It is an arithmetic number, because the mean of its divisors is an integer number (126770910).

Almost surely, 2^979944191 is an apocalyptic number.

979944191 is a deficient number, since it is larger than the sum of its proper divisors (34223089).

979944191 is a wasteful number, since it uses less digits than its factorization.

979944191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14425.

The product of its digits is 734832, while the sum is 53.

The square root of 979944191 is about 31304.0602957508. The cubic root of 979944191 is about 993.2695327725.

The spelling of 979944191 in words is "nine hundred seventy-nine million, nine hundred forty-four thousand, one hundred ninety-one".