3687533 has 4 divisors (see below), whose sum is σ = 3696060. Its totient is φ = 3679008.

The previous prime is 3687469. The next prime is 3687557. The reversal of 3687533 is 3357863.

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 1247689 + 2439844 = 1117^2 + 1562^2 .

It is a cyclic number.

It is not a de Polignac number, because 3687533 - 2⁶ = 3687469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3687493 and 3687502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3687583) 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, 3578 + ... + 4491.

It is an arithmetic number, because the mean of its divisors is an integer number (924015).

Almost surely, 2^3687533 is an apocalyptic number.

It is an amenable number.

3687533 is a deficient number, since it is larger than the sum of its proper divisors (8527).

3687533 is an equidigital number, since it uses as much as digits as its factorization.

3687533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8526.

The product of its digits is 45360, while the sum is 35.

The square root of 3687533 is about 1920.2950294161. The cubic root of 3687533 is about 154.4941260077.

The spelling of 3687533 in words is "three million, six hundred eighty-seven thousand, five hundred thirty-three".