3537285209 has 4 divisors (see below), whose sum is σ = 3623560500. Its totient is φ = 3451009920.

The previous prime is 3537285139. The next prime is 3537285239. The reversal of 3537285209 is 9025827353.

3537285209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 462250000 + 3075035209 = 21500^2 + 55453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3537285209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3537285209.

It is not an unprimeable number, because it can be changed into a prime (3537285239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43137584 + ... + 43137665.

It is an arithmetic number, because the mean of its divisors is an integer number (905890125).

Almost surely, 2^3537285209 is an apocalyptic number.

It is an amenable number.

3537285209 is a deficient number, since it is larger than the sum of its proper divisors (86275291).

3537285209 is an equidigital number, since it uses as much as digits as its factorization.

3537285209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86275290.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 3537285209 is about 59475.0805716142. The cubic root of 3537285209 is about 1523.6668752960. Note that the first 3 decimals are identical.

The spelling of 3537285209 in words is "three billion, five hundred thirty-seven million, two hundred eighty-five thousand, two hundred nine".