979319549 has 4 divisors (see below), whose sum is σ = 1054651836. Its totient is φ = 903987264.

The previous prime is 979319447. The next prime is 979319557. The reversal of 979319549 is 945913979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 945913979 = 353 ⋅2679643.

It can be written as a sum of positive squares in 2 ways, for example, as 570875449 + 408444100 = 23893^2 + 20210^2 .

It is a cyclic number.

It is not a de Polignac number, because 979319549 - 2¹⁶ = 979254013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 979319494 and 979319503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979319569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37666124 + ... + 37666149.

It is an arithmetic number, because the mean of its divisors is an integer number (263662959).

Almost surely, 2^979319549 is an apocalyptic number.

It is an amenable number.

979319549 is a deficient number, since it is larger than the sum of its proper divisors (75332287).

979319549 is a wasteful number, since it uses less digits than its factorization.

979319549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75332286.

The product of its digits is 2755620, while the sum is 56.

The square root of 979319549 is about 31294.0816928697. The cubic root of 979319549 is about 993.0584426078.

The spelling of 979319549 in words is "nine hundred seventy-nine million, three hundred nineteen thousand, five hundred forty-nine".