3400666669 has 2 divisors, whose sum is σ = 3400666670. Its totient is φ = 3400666668.

The previous prime is 3400666657. The next prime is 3400666697. The reversal of 3400666669 is 9666660043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2266997769 + 1133668900 = 47613^2 + 33670^2 .

It is an emirp because it is prime and its reverse (9666660043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3400666669 - 2⁵ = 3400666637 is a prime.

It is a super-2 number, since 2×3400666669² = 23129067587295111122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3400666699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1700333334 + 1700333335.

It is an arithmetic number, because the mean of its divisors is an integer number (1700333335).

Almost surely, 2^3400666669 is an apocalyptic number.

It is an amenable number.

3400666669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400666669 is an equidigital number, since it uses as much as digits as its factorization.

3400666669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 46.

The square root of 3400666669 is about 58315.2353077650. The cubic root of 3400666669 is about 1503.7928708186.

The spelling of 3400666669 in words is "three billion, four hundred million, six hundred sixty-six thousand, six hundred sixty-nine".