3636776 has 72 divisors (see below), whose sum is σ = 8574510. Its totient is φ = 1436160.

The previous prime is 3636769. The next prime is 3636779. The reversal of 3636776 is 6776363.

It can be written as a sum of positive squares in 3 ways, for example, as 3334276 + 302500 = 1826^2 + 550^2 .

It is a super-2 number, since 2×3636776² = 26452279348352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3636779) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 213920 + ... + 213936.

Almost surely, 2^3636776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3636776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4287255).

3636776 is an abundant number, since it is smaller than the sum of its proper divisors (4937734).

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

3636776 is a wasteful number, since it uses less digits than its factorization.

3636776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 43 counting only the distinct ones).

The product of its digits is 95256, while the sum is 38.

The square root of 3636776 is about 1907.0332980837. The cubic root of 3636776 is about 153.7820044861.

The spelling of 3636776 in words is "three million, six hundred thirty-six thousand, seven hundred seventy-six".