3728219 has 8 divisors (see below), whose sum is σ = 4306608. Its totient is φ = 3189760.

The previous prime is 3728203. The next prime is 3728243. The reversal of 3728219 is 9128273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3728219 - 2⁴ = 3728203 is a prime.

It is a super-2 number, since 2×3728219² = 27799233823922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3728719) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9782 + ... + 10155.

It is an arithmetic number, because the mean of its divisors is an integer number (538326).

Almost surely, 2^3728219 is an apocalyptic number.

3728219 is a deficient number, since it is larger than the sum of its proper divisors (578389).

3728219 is a wasteful number, since it uses less digits than its factorization.

3728219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19965.

The product of its digits is 6048, while the sum is 32.

The square root of 3728219 is about 1930.8596531079. The cubic root of 3728219 is about 155.0602471309.

The spelling of 3728219 in words is "three million, seven hundred twenty-eight thousand, two hundred nineteen".