3636909 has 12 divisors (see below), whose sum is σ = 5306652. Its totient is φ = 2400000.

The previous prime is 3636901. The next prime is 3636911. The reversal of 3636909 is 9096363.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 1814409 = 1350^2 + 1347^2 .

It is not a de Polignac number, because 3636909 - 2³ = 3636901 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1092 + ... + 2909.

It is an arithmetic number, because the mean of its divisors is an integer number (442221).

Almost surely, 2^3636909 is an apocalyptic number.

It is an amenable number.

3636909 is a deficient number, since it is larger than the sum of its proper divisors (1669743).

3636909 is a wasteful number, since it uses less digits than its factorization.

3636909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108 (or 4105 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 3636909 is about 1907.0681686820. The cubic root of 3636909 is about 153.7838791096.

It can be divided in two parts, 3636 and 909, that multiplied together give a square (3305124 = 1818²).

The spelling of 3636909 in words is "three million, six hundred thirty-six thousand, nine hundred nine".