3506869 has 2 divisors, whose sum is σ = 3506870. Its totient is φ = 3506868.

The previous prime is 3506863. The next prime is 3506873. The reversal of 3506869 is 9686053.

3506869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3470769 + 36100 = 1863^2 + 190^2 .

It is a cyclic number.

It is not a de Polignac number, because 3506869 - 2¹¹ = 3504821 is a prime.

It is a super-2 number, since 2×3506869² = 24596260366322, which contains 22 as substring.

It is a Chen prime.

3506869 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3506863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1753434 + 1753435.

It is an arithmetic number, because the mean of its divisors is an integer number (1753435).

Almost surely, 2^3506869 is an apocalyptic number.

It is an amenable number.

3506869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3506869 is an equidigital number, since it uses as much as digits as its factorization.

3506869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 3506869 is about 1872.6636110097. The cubic root of 3506869 is about 151.9287090661.

The spelling of 3506869 in words is "three million, five hundred six thousand, eight hundred sixty-nine".