3728567844 has 27 divisors (see below), whose sum is σ = 9425917137. Its totient is φ = 1242733824.

The previous prime is 3728567837. The next prime is 3728567849. The reversal of 3728567844 is 4487658273.

The square root of 3728567844 is 61062.

It is a perfect power (a square), and thus also a powerful number.

3728567844 is a `hidden beast` number, since 3 + 72 + 8 + 567 + 8 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2453220900 + 1275346944 = 49530^2 + 35712^2 .

It is not an unprimeable number, because it can be changed into a prime (3728567849) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 361284 + ... + 371460.

Almost surely, 2^3728567844 is an apocalyptic number.

3728567844 is the 61062-nd square number.

It is an amenable number.

3728567844 is an abundant number, since it is smaller than the sum of its proper divisors (5697349293).

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

3728567844 is an equidigital number, since it uses as much as digits as its factorization.

3728567844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20364 (or 10182 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The cubic root of 3728567844 is about 1550.6508323364.

The spelling of 3728567844 in words is "three billion, seven hundred twenty-eight million, five hundred sixty-seven thousand, eight hundred forty-four".