3720684 has 48 divisors (see below), whose sum is σ = 9628416. Its totient is φ = 1108800.

The previous prime is 3720677. The next prime is 3720697. The reversal of 3720684 is 4860273.

3720684 = 193² + 194² + ... + 263².

3720684 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9174 + ... + 9570.

It is an arithmetic number, because the mean of its divisors is an integer number (200592).

Almost surely, 2^3720684 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 3720684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4814208).

3720684 is an abundant number, since it is smaller than the sum of its proper divisors (5907732).

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

3720684 is a wasteful number, since it uses less digits than its factorization.

3720684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 3720684 is about 1928.9074627882. The cubic root of 3720684 is about 154.9557140216.

The spelling of 3720684 in words is "three million, seven hundred twenty thousand, six hundred eighty-four".