3686503212 has 192 divisors, whose sum is σ = 11249136640. Its totient is φ = 1022326272.

The previous prime is 3686503141. The next prime is 3686503217. The reversal of 3686503212 is 2123056863.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3686503217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3697098 + ... + 3698094.

Almost surely, 2^3686503212 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 3686503212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5624568320).

3686503212 is an abundant number, since it is smaller than the sum of its proper divisors (7562633428).

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

3686503212 is a wasteful number, since it uses less digits than its factorization.

3686503212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1149 counting only the distinct ones).

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

The square root of 3686503212 is about 60716.5810302260. The cubic root of 3686503212 is about 1544.7974322036.

The spelling of 3686503212 in words is "three billion, six hundred eighty-six million, five hundred three thousand, two hundred twelve".