79684349 has 2 divisors, whose sum is σ = 79684350. Its totient is φ = 79684348.

The previous prime is 79684331. The next prime is 79684357. The reversal of 79684349 is 94348697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49632025 + 30052324 = 7045^2 + 5482^2 .

It is an emirp because it is prime and its reverse (94348697) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79684349 - 2⁸ = 79684093 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79684297 and 79684306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79674349) 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 as a sum of consecutive naturals, namely, 39842174 + 39842175.

It is an arithmetic number, because the mean of its divisors is an integer number (39842175).

Almost surely, 2^79684349 is an apocalyptic number.

It is an amenable number.

79684349 is a deficient number, since it is larger than the sum of its proper divisors (1).

79684349 is an equidigital number, since it uses as much as digits as its factorization.

79684349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The square root of 79684349 is about 8926.6090426320. The cubic root of 79684349 is about 430.3194831400.

The spelling of 79684349 in words is "seventy-nine million, six hundred eighty-four thousand, three hundred forty-nine".