79816349 has 2 divisors, whose sum is σ = 79816350. Its totient is φ = 79816348.

The previous prime is 79816333. The next prime is 79816367. The reversal of 79816349 is 94361897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77757124 + 2059225 = 8818^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 79816349 - 2⁴ = 79816333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79816379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39908174 + 39908175.

It is an arithmetic number, because the mean of its divisors is an integer number (39908175).

Almost surely, 2^79816349 is an apocalyptic number.

It is an amenable number.

79816349 is a deficient number, since it is larger than the sum of its proper divisors (1).

79816349 is an equidigital number, since it uses as much as digits as its factorization.

79816349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 79816349 is about 8933.9996082382. Note that the first 3 decimals coincide. The cubic root of 79816349 is about 430.5569653071.

The spelling of 79816349 in words is "seventy-nine million, eight hundred sixteen thousand, three hundred forty-nine".