3846509 has 2 divisors, whose sum is σ = 3846510. Its totient is φ = 3846508.

The previous prime is 3846499. The next prime is 3846523. The reversal of 3846509 is 9056483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2569609 + 1276900 = 1603^2 + 1130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3846509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3846529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923254 + 1923255.

It is an arithmetic number, because the mean of its divisors is an integer number (1923255).

Almost surely, 2^3846509 is an apocalyptic number.

It is an amenable number.

3846509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3846509 is an equidigital number, since it uses as much as digits as its factorization.

3846509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 3846509 is about 1961.2518961113. The cubic root of 3846509 is about 156.6831344291.

The spelling of 3846509 in words is "three million, eight hundred forty-six thousand, five hundred nine".