3728211 has 8 divisors (see below), whose sum is σ = 5142480. Its totient is φ = 2399712.

The previous prime is 3728203. The next prime is 3728243. The reversal of 3728211 is 1128273.

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

It is not a de Polignac number, because 3728211 - 2³ = 3728203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3728251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21340 + ... + 21513.

It is an arithmetic number, because the mean of its divisors is an integer number (642810).

Almost surely, 2^3728211 is an apocalyptic number.

3728211 is a deficient number, since it is larger than the sum of its proper divisors (1414269).

3728211 is a wasteful number, since it uses less digits than its factorization.

3728211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42885.

The product of its digits is 672, while the sum is 24.

The square root of 3728211 is about 1930.8575814907. The cubic root of 3728211 is about 155.0601362216.

The spelling of 3728211 in words is "three million, seven hundred twenty-eight thousand, two hundred eleven".