79798847 has 2 divisors, whose sum is σ = 79798848. Its totient is φ = 79798846.

The previous prime is 79798813. The next prime is 79798877. The reversal of 79798847 is 74889797.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79798847 - 2²⁶ = 12689983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79798877) 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, 39899423 + 39899424.

It is an arithmetic number, because the mean of its divisors is an integer number (39899424).

Almost surely, 2^79798847 is an apocalyptic number.

79798847 is a deficient number, since it is larger than the sum of its proper divisors (1).

79798847 is an equidigital number, since it uses as much as digits as its factorization.

79798847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7112448, while the sum is 59.

The square root of 79798847 is about 8933.0200380386. The cubic root of 79798847 is about 430.5254923948.

The spelling of 79798847 in words is "seventy-nine million, seven hundred ninety-eight thousand, eight hundred forty-seven".