3531636 has 18 divisors (see below), whose sum is σ = 8927282. Its totient is φ = 1177200.

The previous prime is 3531623. The next prime is 3531659. The reversal of 3531636 is 6361353.

It can be written as a sum of positive squares in only one way, i.e., 2232036 + 1299600 = 1494^2 + 1140^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 49015 + ... + 49086.

Almost surely, 2^3531636 is an apocalyptic number.

3531636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3531636 is an abundant number, since it is smaller than the sum of its proper divisors (5395646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3531636 is a wasteful number, since it uses less digits than its factorization.

3531636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98111 (or 98106 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 3531636 is about 1879.2647498423. The cubic root of 3531636 is about 152.2855320824.

Adding to 3531636 its reverse (6361353), we get a palindrome (9892989).

The spelling of 3531636 in words is "three million, five hundred thirty-one thousand, six hundred thirty-six".