79907747 has 2 divisors, whose sum is σ = 79907748. Its totient is φ = 79907746.

The previous prime is 79907741. The next prime is 79907783. The reversal of 79907747 is 74770997.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79907747 - 2¹⁴ = 79891363 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79907695 and 79907704.

It is not a weakly prime, because it can be changed into another prime (79907741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39953873 + 39953874.

It is an arithmetic number, because the mean of its divisors is an integer number (39953874).

Almost surely, 2^79907747 is an apocalyptic number.

79907747 is a deficient number, since it is larger than the sum of its proper divisors (1).

79907747 is an equidigital number, since it uses as much as digits as its factorization.

79907747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777924, while the sum is 50.

The square root of 79907747 is about 8939.1133229197. The cubic root of 79907747 is about 430.7212467475.

The spelling of 79907747 in words is "seventy-nine million, nine hundred seven thousand, seven hundred forty-seven".