3603720 has 64 divisors (see below), whose sum is σ = 11016000. Its totient is φ = 942848.

The previous prime is 3603713. The next prime is 3603727. The reversal of 3603720 is 273063.

It is an interprime number because it is at equal distance from previous prime (3603713) and next prime (3603727).

It is not an unprimeable number, because it can be changed into a prime (3603727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6826 + ... + 7334.

It is an arithmetic number, because the mean of its divisors is an integer number (172125).

Almost surely, 2^3603720 is an apocalyptic number.

3603720 is a gapful number since it is divisible by the number (30) 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 3603720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5508000).

3603720 is an abundant number, since it is smaller than the sum of its proper divisors (7412280).

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

3603720 is a wasteful number, since it uses less digits than its factorization.

3603720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 3603720 is about 1898.3466490607. The cubic root of 3603720 is about 153.3146585112.

Adding to 3603720 its reverse (273063), we get a palindrome (3876783).

The spelling of 3603720 in words is "three million, six hundred three thousand, seven hundred twenty".