3613728 has 24 divisors (see below), whose sum is σ = 9486288. Its totient is φ = 1204544.

The previous prime is 3613723. The next prime is 3613733. The reversal of 3613728 is 8273163.

It is an interprime number because it is at equal distance from previous prime (3613723) and next prime (3613733).

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 3613695 and 3613704.

It is not an unprimeable number, because it can be changed into a prime (3613721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18726 + ... + 18917.

It is an arithmetic number, because the mean of its divisors is an integer number (395262).

Almost surely, 2^3613728 is an apocalyptic number.

It is an amenable number.

3613728 is an abundant number, since it is smaller than the sum of its proper divisors (5872560).

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

3613728 is a wasteful number, since it uses less digits than its factorization.

3613728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37656 (or 37648 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 3613728 is about 1900.9807994822. The cubic root of 3613728 is about 153.4564522600.

The spelling of 3613728 in words is "three million, six hundred thirteen thousand, seven hundred twenty-eight".