3728417 has 16 divisors (see below), whose sum is σ = 4765824. Its totient is φ = 2832000.

The previous prime is 3728411. The next prime is 3728429. The reversal of 3728417 is 7148273.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3728417 - 2¹⁶ = 3662881 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3728411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2567 + ... + 3747.

It is an arithmetic number, because the mean of its divisors is an integer number (297864).

Almost surely, 2^3728417 is an apocalyptic number.

It is an amenable number.

3728417 is a deficient number, since it is larger than the sum of its proper divisors (1037407).

3728417 is a wasteful number, since it uses less digits than its factorization.

3728417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240.

The product of its digits is 9408, while the sum is 32.

The square root of 3728417 is about 1930.9109249264. The cubic root of 3728417 is about 155.0629920864.

The spelling of 3728417 in words is "three million, seven hundred twenty-eight thousand, four hundred seventeen".