79666333 has 2 divisors, whose sum is σ = 79666334. Its totient is φ = 79666332.

The previous prime is 79666313. The next prime is 79666337. The reversal of 79666333 is 33366697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68194564 + 11471769 = 8258^2 + 3387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79666333 is a prime.

It is a super-2 number, since 2×79666333² = 12693449227333778, 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 79666333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79666337) 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, 39833166 + 39833167.

It is an arithmetic number, because the mean of its divisors is an integer number (39833167).

Almost surely, 2^79666333 is an apocalyptic number.

It is an amenable number.

79666333 is a deficient number, since it is larger than the sum of its proper divisors (1).

79666333 is an equidigital number, since it uses as much as digits as its factorization.

79666333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 43.

The square root of 79666333 is about 8925.5998677960. The cubic root of 79666333 is about 430.2870500870.

The spelling of 79666333 in words is "seventy-nine million, six hundred sixty-six thousand, three hundred thirty-three".