3506549 has 2 divisors, whose sum is σ = 3506550. Its totient is φ = 3506548.

The previous prime is 3506519. The next prime is 3506567. The reversal of 3506549 is 9456053.

It is a happy number.

3506549 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., 2951524 + 555025 = 1718^2 + 745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3506549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3506519) 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, 1753274 + 1753275.

It is an arithmetic number, because the mean of its divisors is an integer number (1753275).

Almost surely, 2^3506549 is an apocalyptic number.

It is an amenable number.

3506549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3506549 is an equidigital number, since it uses as much as digits as its factorization.

3506549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 3506549 is about 1872.5781692629. The cubic root of 3506549 is about 151.9240877866.

The spelling of 3506549 in words is "three million, five hundred six thousand, five hundred forty-nine".