83366669 has 2 divisors, whose sum is σ = 83366670. Its totient is φ = 83366668.

The previous prime is 83366659. The next prime is 83366671. The reversal of 83366669 is 96666338.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60918025 + 22448644 = 7805^2 + 4738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83366669 is a prime.

It is a super-2 number, since 2×83366669² = 13900003000311122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 83366671, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83366639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41683334 + 41683335.

It is an arithmetic number, because the mean of its divisors is an integer number (41683335).

Almost surely, 2^83366669 is an apocalyptic number.

It is an amenable number.

83366669 is a deficient number, since it is larger than the sum of its proper divisors (1).

83366669 is an equidigital number, since it uses as much as digits as its factorization.

83366669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 47.

The square root of 83366669 is about 9130.5349788498. The cubic root of 83366669 is about 436.8484673780.

The spelling of 83366669 in words is "eighty-three million, three hundred sixty-six thousand, six hundred sixty-nine".