3546509 has 2 divisors, whose sum is σ = 3546510. Its totient is φ = 3546508.

The previous prime is 3546469. The next prime is 3546539. The reversal of 3546509 is 9056453.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2941225 + 605284 = 1715^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 3546509 - 2¹⁶ = 3480973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3546539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1773254 + 1773255.

It is an arithmetic number, because the mean of its divisors is an integer number (1773255).

Almost surely, 2^3546509 is an apocalyptic number.

It is an amenable number.

3546509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3546509 is an equidigital number, since it uses as much as digits as its factorization.

3546509 is an evil number, because the sum of its binary digits is even.

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

The square root of 3546509 is about 1883.2177250653. The cubic root of 3546509 is about 152.4990092205.

The spelling of 3546509 in words is "three million, five hundred forty-six thousand, five hundred nine".