79986133 has 2 divisors, whose sum is σ = 79986134. Its totient is φ = 79986132.

The previous prime is 79986131. The next prime is 79986163. The reversal of 79986133 is 33168997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78889924 + 1096209 = 8882^2 + 1047^2 .

It is an emirp because it is prime and its reverse (33168997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79986133 - 2¹ = 79986131 is a prime.

Together with 79986131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79986131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39993066 + 39993067.

It is an arithmetic number, because the mean of its divisors is an integer number (39993067).

Almost surely, 2^79986133 is an apocalyptic number.

It is an amenable number.

79986133 is a deficient number, since it is larger than the sum of its proper divisors (1).

79986133 is an equidigital number, since it uses as much as digits as its factorization.

79986133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 79986133 is about 8943.4966875378. The cubic root of 79986133 is about 430.8620402795.

The spelling of 79986133 in words is "seventy-nine million, nine hundred eighty-six thousand, one hundred thirty-three".