66736933 has 2 divisors, whose sum is σ = 66736934. Its totient is φ = 66736932.

The previous prime is 66736931. The next prime is 66737029. The reversal of 66736933 is 33963766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51236964 + 15499969 = 7158^2 + 3937^2 .

It is a cyclic number.

It is not a de Polignac number, because 66736933 - 2¹ = 66736931 is a prime.

It is a super-3 number, since 3×66736933³ (a number of 24 digits) contains 333 as substring.

Together with 66736931, 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 66736933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66736931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33368466 + 33368467.

It is an arithmetic number, because the mean of its divisors is an integer number (33368467).

Almost surely, 2^66736933 is an apocalyptic number.

It is an amenable number.

66736933 is a deficient number, since it is larger than the sum of its proper divisors (1).

66736933 is an equidigital number, since it uses as much as digits as its factorization.

66736933 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 66736933 is about 8169.2675926303. The cubic root of 66736933 is about 405.6225410284.

The spelling of 66736933 in words is "sixty-six million, seven hundred thirty-six thousand, nine hundred thirty-three".