3621750 has 64 divisors (see below), whose sum is σ = 9884160. Its totient is φ = 876000.

The previous prime is 3621733. The next prime is 3621767. The reversal of 3621750 is 571263.

It is an interprime number because it is at equal distance from previous prime (3621733) and next prime (3621767).

It is a self number, because there is not a number n which added to its sum of digits gives 3621750.

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 31 ways as a sum of consecutive naturals, for example, 8031 + ... + 8469.

It is an arithmetic number, because the mean of its divisors is an integer number (154440).

Almost surely, 2^3621750 is an apocalyptic number.

3621750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3621750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4942080).

3621750 is an abundant number, since it is smaller than the sum of its proper divisors (6262410).

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

3621750 is a wasteful number, since it uses less digits than its factorization.

3621750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 3621750 is about 1903.0895932667. The cubic root of 3621750 is about 153.5699193753.

It can be divided in two parts, 3621 and 750, that added together give a triangular number (4371 = T₉₃).

The spelling of 3621750 in words is "three million, six hundred twenty-one thousand, seven hundred fifty".