79960849 has 2 divisors, whose sum is σ = 79960850. Its totient is φ = 79960848.

The previous prime is 79960847. The next prime is 79960889. The reversal of 79960849 is 94806997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79923600 + 37249 = 8940^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 79960849 - 2¹ = 79960847 is a prime.

Together with 79960847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 79960796 and 79960805.

It is not a weakly prime, because it can be changed into another prime (79960841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39980424 + 39980425.

It is an arithmetic number, because the mean of its divisors is an integer number (39980425).

Almost surely, 2^79960849 is an apocalyptic number.

It is an amenable number.

79960849 is a deficient number, since it is larger than the sum of its proper divisors (1).

79960849 is an equidigital number, since it uses as much as digits as its factorization.

79960849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 79960849 is about 8942.0830347297. The cubic root of 79960849 is about 430.8166363097.

The spelling of 79960849 in words is "seventy-nine million, nine hundred sixty thousand, eight hundred forty-nine".