79981103 has 2 divisors, whose sum is σ = 79981104. Its totient is φ = 79981102.

The previous prime is 79981079. The next prime is 79981117. The reversal of 79981103 is 30118997.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79981103 - 2¹⁰ = 79980079 is a prime.

It is a Sophie Germain 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 (79981163) 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, 39990551 + 39990552.

It is an arithmetic number, because the mean of its divisors is an integer number (39990552).

Almost surely, 2^79981103 is an apocalyptic number.

79981103 is a deficient number, since it is larger than the sum of its proper divisors (1).

79981103 is an equidigital number, since it uses as much as digits as its factorization.

79981103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 79981103 is about 8943.2154731953. The cubic root of 79981103 is about 430.8530083744.

The spelling of 79981103 in words is "seventy-nine million, nine hundred eighty-one thousand, one hundred three".