3688524 has 144 divisors (see below), whose sum is σ = 12065760. Its totient is φ = 967680.

The previous prime is 3688519. The next prime is 3688537. The reversal of 3688524 is 4258863.

3688524 = 250² + 251² + ... + 298².

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

It is a d-powerful number, because it can be written as 3³ + 6⁷ + 8² + 8⁶ + 5⁴ + 2²¹ + 4¹⁰ .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89944 + ... + 89984.

It is an arithmetic number, because the mean of its divisors is an integer number (83790).

Almost surely, 2^3688524 is an apocalyptic number.

3688524 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3688524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6032880).

3688524 is an abundant number, since it is smaller than the sum of its proper divisors (8377236).

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

3688524 is a wasteful number, since it uses less digits than its factorization.

3688524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 70 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 3688524 is about 1920.5530453492. The cubic root of 3688524 is about 154.5079645249.

The spelling of 3688524 in words is "three million, six hundred eighty-eight thousand, five hundred twenty-four".