79099873 has 2 divisors, whose sum is σ = 79099874. Its totient is φ = 79099872.

The previous prime is 79099847. The next prime is 79099901. The reversal of 79099873 is 37899097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78978769 + 121104 = 8887^2 + 348^2 .

It is an emirp because it is prime and its reverse (37899097) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79099873 - 2²¹ = 77002721 is a prime.

It is a super-2 number, since 2×79099873² = 12513579817232258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79099873.

It is not a weakly prime, because it can be changed into another prime (79099973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39549936 + 39549937.

It is an arithmetic number, because the mean of its divisors is an integer number (39549937).

Almost surely, 2^79099873 is an apocalyptic number.

It is an amenable number.

79099873 is a deficient number, since it is larger than the sum of its proper divisors (1).

79099873 is an equidigital number, since it uses as much as digits as its factorization.

79099873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 79099873 is about 8893.8109379501. The cubic root of 79099873 is about 429.2647847466.

The spelling of 79099873 in words is "seventy-nine million, ninety-nine thousand, eight hundred seventy-three".