3573509 has 2 divisors, whose sum is σ = 3573510. Its totient is φ = 3573508.

The previous prime is 3573503. The next prime is 3573511. The reversal of 3573509 is 9053753.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2856100 + 717409 = 1690^2 + 847^2 .

It is an emirp because it is prime and its reverse (9053753) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3573509 - 2⁸ = 3573253 is a prime.

It is a super-3 number, since 3×3573509³ (a number of 21 digits) contains 333 as substring.

Together with 3573511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3573503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786754 + 1786755.

It is an arithmetic number, because the mean of its divisors is an integer number (1786755).

Almost surely, 2^3573509 is an apocalyptic number.

It is an amenable number.

3573509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3573509 is an equidigital number, since it uses as much as digits as its factorization.

3573509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14175, while the sum is 32.

The square root of 3573509 is about 1890.3727145724. The cubic root of 3573509 is about 152.8850290388.

The spelling of 3573509 in words is "three million, five hundred seventy-three thousand, five hundred nine".