66976333 has 2 divisors, whose sum is σ = 66976334. Its totient is φ = 66976332.

The previous prime is 66976331. The next prime is 66976361. The reversal of 66976333 is 33367966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43917129 + 23059204 = 6627^2 + 4802^2 .

It is a cyclic number.

It is not a de Polignac number, because 66976333 - 2¹ = 66976331 is a prime.

It is a super-3 number, since 3×66976333³ (a number of 24 digits) contains 333 as substring.

Together with 66976331, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66976333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66976331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33488166 + 33488167.

It is an arithmetic number, because the mean of its divisors is an integer number (33488167).

Almost surely, 2^66976333 is an apocalyptic number.

It is an amenable number.

66976333 is a deficient number, since it is larger than the sum of its proper divisors (1).

66976333 is an equidigital number, since it uses as much as digits as its factorization.

66976333 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 66976333 is about 8183.9069520615. The cubic root of 66976333 is about 406.1069811991.

The spelling of 66976333 in words is "sixty-six million, nine hundred seventy-six thousand, three hundred thirty-three".