3688533 has 24 divisors (see below), whose sum is σ = 5645952. Its totient is φ = 2315808.

The previous prime is 3688519. The next prime is 3688537. The reversal of 3688533 is 3358863.

It is not a de Polignac number, because 3688533 - 2⁵ = 3688501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21235 + ... + 21407.

It is an arithmetic number, because the mean of its divisors is an integer number (235248).

Almost surely, 2^3688533 is an apocalyptic number.

It is an amenable number.

3688533 is a deficient number, since it is larger than the sum of its proper divisors (1957419).

3688533 is a wasteful number, since it uses less digits than its factorization.

3688533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 302 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 3688533 is about 1920.5553884228. Note that the first 3 decimals coincide. The cubic root of 3688533 is about 154.5080901912.

The spelling of 3688533 in words is "three million, six hundred eighty-eight thousand, five hundred thirty-three".