3728123 has 8 divisors (see below), whose sum is σ = 4485120. Its totient is φ = 3027240.

The previous prime is 3728113. The next prime is 3728141. The reversal of 3728123 is 3218273.

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 3728123 - 2¹⁶ = 3662587 is a prime.

It is a super-2 number, since 2×3728123² = 27797802206258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3728092 and 3728101.

It is not an unprimeable number, because it can be changed into a prime (3728113) 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, 13883 + ... + 14148.

It is an arithmetic number, because the mean of its divisors is an integer number (560640).

Almost surely, 2^3728123 is an apocalyptic number.

3728123 is a deficient number, since it is larger than the sum of its proper divisors (756997).

3728123 is a wasteful number, since it uses less digits than its factorization.

3728123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28057.

The product of its digits is 2016, while the sum is 26.

The square root of 3728123 is about 1930.8347935543. The cubic root of 3728123 is about 155.0589162085.

The spelling of 3728123 in words is "three million, seven hundred twenty-eight thousand, one hundred twenty-three".